Gran Turismo 3 A-Spec - Power Ranking
                           Version 2.0
          By: Palfy  Email:  vitzrs1_6@hotmail.com


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Last updated:  3/29/02

Table of Contents

1:  Introduction
3:  Power Ranking Formula
4:  Power Ranking
5:  User Feedback
6:  Revision History
7:  Legal

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1:  Introduction

Many sports devise a formula to rank all players against each other, so
one can determine who the "best" or "most complete" player is in any
particular sport.  This is typically called a Power Ranking.  

With so many cars featured in Gran Tourismo, with often just miniscule 
differences in their performance characteristics, a Power Ranking would 
give anyone playing the game a very good way to determine how "good" a 
car would be, or what the "best" car would be to use in simulation mode 
against cars picked by the AI.

Similar to sports where there are long and on-going discussions about
the formulas used to determine the best players, I certainly realize 
that the Power Ranking Formula can be considered subjective or might not
yield the results you expect.  Based on your driving style, you might win 
easily against a car that is ranked higher than yours.  Yet, the Power 
Ranking gives you at least pointers on potential performance of all the
cars, thus making it easier for you to select a car well suited for what
you want to accomplish.

However, it is unavoidable that some cars will be over-rated or 
under-rated, since no single formula can be devised that will rank
each and every car exactly right compared with other cars.  Thus, you
might want to take this ranking with a grain of salt.  For a good
example of an over-rated car, look no further than the Suzuki Escudo.
Yes, it will allow you to blow away the competition on the Test Track
or the Super Speedway, but its handling is extremely difficult, so you
will certainly struggle with it racing Cote d'Azur or the Corkscrew in
Laguna Seca.  Yet, it will deliver a basis for comparing different cars.
And it will provide all of us an "objective" basis to discuss the
performance of certain/all cars.

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2:  Why bother?

Since most of us upgrade and/or tune our cars extensively anyway, why
bother writing this FAQ?

There are two reasons for doing so:
1. Initially, when you are new to the game and have only a limited
number of cars available to you, the Power Ranking numbers can help you
to pick the right starter car, or even you second car.  Also, you might
have limited funds for upgrades initially, so again, picking the right
car as your second or third car might be crucial

2. Later in the game, despite having a lot of money available for
upgrades, you will mainly race F1 or Race Cars.  While you can tune these
cars, there are not too many upgrades available for these cars, so the
Power Rankings might matter to you.



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3:  Power Ranking Formula

Thanks for all the feedback on my Power Ranking Formula.  Most of the 
feedback pertained to the Cornering/Handling section of the formula,
so for version 2 of this FAQ, I revised this portion of the formula.
See below for an explanation.

The New, Updated Power Ranking Formula is:

Power Ranking Value = 
1/HP-WeightRatio * 2/36 + 
1/((3*HP-weightFactor + 7*Torque-WeightFactor)/10)
* (1 + Tuning Factor) * 34/36 + 
1 * (1 + Tuning Factor) * 2.5 + 
1 * (1 + DrivetrainUpliftFactor) * 1.5 + 
1 * (DriveTrainUpliftFactor * (2* (Front Downforce +
Back Downforce)) + (100 - Front Height - Back Height)/400) * 
(1 + TuningFactor) * 1.5


Explanation:

The Power Ranking Formula will be applied only to "stock" cars (cars
that you can buy from the car dealership, not tuned, not upgraded), 
or to cars that you win at the end of a race or championship.  Once you
tune or upgrade the car, the ranking would change.  Invariably, 
upgraded cars are not considered or featured in the Power Ranking.

The following three major components influence your racing experience 
the most:
- Power/Acceleration
- Braking
- Cornering/Handling

Thus, all three areas are weighted equally in the Power Ranking Formula:

Power Ranking Value = 
Power/Acceleration Performance + Braking Performance +
Cornering/Handling Performance


Tuning Factor
While many of the stock cars are not tuned and you have to tune them
yourself (your tuning is not considered in the Power Rating Formula),
many of the cars you can win in the professional level races are
Road Cars or Race Cars and are tuned (well balanced with respect to
acceleration, braking, cornering, handling).  Thus, a Tuning Factor of
20% uplift was applied to all F1 cars and road and race cars (cars that
typically come with Medium tires and most/all upgrades applied).  All
stock cars received a tuning factor of 0%.


Power/Acceleration Performance

The Power/Acceleration Performance consists of two parts:
Power Performance and Acceleration Performance.

Power Performance
While the sheer power of a car is important, the power/weight ratio
better exemplifies the power performance of a car.  Ideally,  
everything being equal, the more horsepowers your car has, the faster
it can go.  Also, the lower your power/weight ratio, the faster your
car can go (again, everything being equal).  However, in GT3, there
are only two out of 36 tracks where sheer power (thus, HP/weight
ratio) matters:  Super Speedway and Test Course.  Thus, the Power
Performance is computed as  1 divided by HP/Weight ratio and multiplied
by its relative weight (Power Factor) of 2/36.
Power Performance = 1/HP-WeightRatio * 2/36

Acceleration Performance
Acceleration is very important for racing most of the tracks in GT3.
The curvier a track is, the more important acceleration will be.
Often, when tuning a car, the first adjustment one makes is the gear
shift ratio to set the optimal setting for acceleration vs. high speed.
On a track like Cote d'Azur or Laguna Seca, you hardly ever reach the
top speed of the car, while on the Test Course, acceleration hardly
matters.
Acceleration is influenced mainly by the torque-weight ratio, but also
by the HP-weight ratio (HPs also influence the torque-weight ratio).
Thus, 7/10 of the acceleration factor is influenced by acceleration
(torque-weight factor), whereas 3/10 are influenced by the 
HP-weight factor.  
Tuning of the car also plays a role, so the Tuning Factor (see above)
was applied in the formula as well.  Since Acceleration matters pretty
much in 34 of 36 races, its relative weight (Acceleration Factor) was 
set to 34/36.
AccelerationPerformance = 
1/((3*HP-weightFactor + 7*Torque-WeightFactor)/10)
* (1 + Tuning Factor) * 34/36


Braking
Since there is no braking data in GT3, the braking Factor was set to 1,
meaning that all cars have adequate braking for the power they have
(actually, when racing, e.g., the Suzuki Escudo, you will find out that
it does not have adequate braking power, but I did not want to use a 
subjective factor to braking).  Braking is also influenced by Tuning,
so the Tuning Factor (see above) was applied.  To give braking the same
weight as power/acceleration has, an uplift factor of 2.5 was applied

BrakingPerformance =  1   * (1 + Tuning Factor) * 2.5

Note: While the braking force can be influenced and tuned, the preset for
all cars is Level 9 in the front and back, thus it could not be considered
for the formula.


Cornering / Handling

The Cornering/Handling performance is influenced by both the cornering
abilities of a car and the way it handles in general.  For both
cornering and handling, an uplift factor of 50% was assigned to each
category to equally weigh the sum of both with Braking and
Power/Acceleration Performance

Cornering Abilities
Revision: Upon your feedback, I included the downforce settings and
the suspension height setting in the formula.  Other settings, such
as cambio angle, seem to be always preset to 2.0 in the front and 1.0
in the back, so I did not consider them, since they are the same for
all cars.  You have to purchase the full suspension upgrade in order
to see the suspension height setting.  I used the factory setting for
all cars.  Downforce cannot be "unlocked" by any upgrade, so either it
is visible and can be changed (typically for F1, race cars and rallye
cars, but also for some cars like the Mitsubishi Lancers) or it is
invisible and cannot be changed.  However, I noticed that the makers of
the game seem to have used "pre-settings" for different classes of cars,
e.g., all F1 cars have at least a downforce of 0.70 in the front and
1.3 in the back.  All Rallye cars have downforce factory settings of 
0.45 and 0.66 whereas Race cars typically have settings of 0.66 and
0.81.  Thus, for cars without visible settings, I put them into 
certain buckets (e.g., small cars, sporty cars or muscle cars) and
assigned pre-defined downforce values.
So the new cornering formula looks like the following
Cornering Ability = DriveTrainUpliftFactor * (2* (Front Downforce +
Back Downforce)) + (100 - Front Height - Back Height)/400
This puts the main emphasis on the Downforce and keeps the Height
Factor pretty small, typically at less than 10% of the Downforce
factor.


Old part of the formula: NO LONGER VALID
No details are provided in GT3, but in general, cornering abilities
depend to a certain extend on the drive train.  FF cars generally have
a larger turning radius than FR cars.  FF cars have a tendency to 
understeer a lot, whereas FR cars are more prone to oversteer.  4WD and
MR cars have pretty solid cornering abilities with a tendency to 
under- or oversteer less than FF and FR cars do.  Thus, uplift factors
were assigned to drive trains as follows: 
FF: 0%; FR: 2.5%; 4WD: 10%; MR: 15%
The formula thus looks like
Cornering Ability =  1   * (1 + DrivetrainUpliftFactor)

Handling
Again, no details are provided, but in addition to the Drivetrain
UpliftFactor (see cornering), tuning also plays a role, so the
TuningFactor was applied as well.  Thus, the formula looks like this
Handling Ability =  1   * (1 + DrivetrainUpliftFactor) * (1 + TuningFactor)

Thus, the overall Power Rank value is determined as:

Power Ranking Value = 
1/HP-WeightRatio * 2/36 + 
1/((3*HP-weightFactor + 7*Torque-WeightFactor)/10)
* (1 + Tuning Factor) * 34/36 + 
1 * (1 + Tuning Factor) * 2.5 + 
1 * (1 + DrivetrainUpliftFactor) * 1.5 + 
1 * (1 + DrivetrainUpliftFactor) * (1 + TuningFactor) * 1.5

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4:  Power Ranking

After so much math and theoretical "car stuff", here are the power
rankings:


Car                            Drive  HP     HP Torque Tuned Power
                               train     Weight Weight       Ranking
F686/M                                   18.433
F687/S                                   18.190
F094/S                                   17.996
F094/H                                   17.536
F688/S                                   17.528
F090/S                                   17.075
Suzuki Escudo Pikes Peak Version         14.178
Mazda 787B                               13.763
Nissan R390 GT1 LM Race Car              13.348
Toyota GT-ONE Race Car                   12.831
Tommy Kaira ZZII                         12.454
Chevrolet Corvette C5R                   11.700
Gillet Vertigo Race Car                  11.664
Mitsubishi FTO LM Race Car               11.550
Mercedes-Benz CLK Touring Car            11.118
Pennzoil Nismo GT-R                      11.016
Tickford Falcon XR8 Race Car             11.009
Dodge Viper GTS-R Team Oreca             10.979
Toyota Altezza LM Race Car               10.968
Chevrolet Camaro Race Car                10.948
Ford GT40 Race Car                       10.932
Raybrig NSX                              10.851
Arta NSX                                 10.851
Pagani Zonda C12S Race Car               10.825
Toyota Castrol Tom's Supra               10.559
Panoz Esperante GTR-1                    10.487
Opel Astra Touring Car                   10.450
Lister Storm V12 Race Car                10.390
Honda Castrol Mugen NSX                  10.377
Opel Calibra Touring Car                 10.181
Jaguar XJ220 Road Car                     9.627
TVR Speed 12                              9.574
Renault Clio Sport Race Car               9.335
Tommy Kaira ZZS (J)                       9.047
Peugeot 206 Rally Car                     8.929
Subaru Impreza Rally Car Prototyp         8.904
Subaru Impreza Rally Car                  8.894
Dodge Viper GTS-R Concept                 8.851
Citroen Xsara Rally Car                   8.760
Lancia Delta HF Integrale Rally Car       8.716
Toyota Celica Rally Car                   8.653
Mitsubishi Lancer Evolution VII Rally Car 8.625
Mitsubishi Lancer Evolution VI Rally Car  8.625
Toyota Corolla Rally Car                  8.621
Nismo Skyline GT-R S-tune R32 (J)         8.533
Ford Escort Rally Car                     8.517
Spoon S2000 Race Car (J)                  8.456
Nismo 400R                                8.424
Ford Focus Rally Car                      8.370
Shelby Cobra                              8.141
RUF CTR2                                  8.119
Nismo GT-R LM Road Car                    7.870
Honda NSX Type R (J)                      7.810
Pagani Zonda C12                          7.636
RUF 3400S                                 7.587
RUF RGT                                   7.511
Volkswagen New Beetle Cup Car             7.508
TVR Tuscan Speed 6                        7.496
Lotus Motor Sport Elise                   7.363
Toyota Celica GT-Four ST205 (J)           7.330
Chevrolet Corvette Z06                    7.195
TVR Griffith 500                          7.184
Tom's X540 Chaser (J)                     7.111
Dodge Viper GTS                           7.067
Mugen S2000 (J)                           7.055
Volkswagen Lupo Cup Car                   7.053
Lotus Esprit V8 SE                        6.960
Aston Martin 8 Vantage                    6.635
Renault Clio Sport V6 24V                 6.562
Lotus Elise 190                           6.514
Chevrolet Corvette Grand Sport            6.496
Opel Speedster                            6.478
Lotus Esprit Sport 350                    6.415
TRD Celica TRD Sports M (J)               6.300
Honda NSX Type Zero (J)                   6.298
Mercedes-Benz CLK55                       6.284
Volkswagen New Beetle RSi                 6.269
Toyota Sprinter Trueno GT-Apex S.S. Ver.  6.166
Mitsubishi Lancer Evolution VII RS (J)    6.154
Acura NSX                                 6.114
Mitsubishi Lancer Evolution VI GSR T.M.E. 6.105
Mitsubishi Lancer Evolution VI GSR (J)    6.105
Mitsubishi Lancer Evolution VII GSR (J)   6.080
Subaru Impreza Wagon WRX STi Version VI(J)6.068
Subaru Impreza Sedan WRX STi Version VI(J)6.068
Mitsubishi Lancer Evolution V GSR (J)     6.045
Mitsubishi Lancer Evolution IV GSR (J)    6.039
Subaru Impreza 22B-STi Version (J)        6.032
Aston Martin Vanquish                     6.019
Toyota MR2 GT-S (J)                       5.943
Subaru Impreza WRX STi (J)                5.939
Subaru Legacy B4 Blitzen (J)              5.865
Spoon S2000 (J)                           5.850
Mitsubishi Lancer Evolution VI RS (J)     5.844
Audi S4                                   5.823
Mazda RX-7 Type RZ (J)                    5.807
Mazda RX-7 Type RS (J)                    5.785
Mercedes-Benz CL600                       5.775
Acura NSX                                 5.772
Subaru Legacy Touring Wagon GT-B (J)      5.764
Subaru Impreza Sports Wagon STi (J)       5.764
Mitsubishi 3000GT VR-4                    5.762
Subaru Legacy B4 RSK (J)                  5.761
Chevrolet Camaro SS                       5.758
Toyota MR2 G-Limited (J)                  5.752
Mitsubishi 3000GT VR-4 Turbo              5.744
Audi TT 1.8T quattro                      5.736
Mine's Lancer Evolution VI (J)            5.711
Nissan Z Concept                          5.708
Nissan Skyline GT-R Vspec II R32 (J)      5.692
Nissan Skyline GT-R V-spec R34 (J)        5.679
Nissan Skyline GT-R V-spec II R34 (J)     5.679
Aston Martin DB7 Vantage Coupe            5.677
Nissan Skyline GT-R Vspec R33 (J)         5.666
Jaguar XKR Coupe                          5.665
Toyota MR-S Edition (J)                   5.665
Nissan Silvia Spec R Aero (J)             5.639
Toyota Supra RZ (J)                       5.636
Ford Mustang SVT Cobra R                  5.633
Mazda RX-8                                5.597
Chevrolet Camaro Z28                      5.592
Nissan 300ZX TwinTurbo 2seater (J)        5.570
Nissan 300ZX TwinTurbo 2 by 2 (J)         5.525
Nissan Silvia K's S13 2000cc (J)          5.515
Nissan 240SX K's Aero (J)                 5.491
Nissan Skyline GTS-t Type M R32 (J)       5.470
Nissan 240SX Fastback Type X (J)          5.469
Honda S2000                               5.404
Spoon Sport Civic Type R                  5.400
Honda S2000 Type V (J)                    5.388
Mercedes-Benz SLK 230 Kompressor          5.308
Honda Integra Type R 98 spec (J)          5.270
Toyota Supra SZ-R (J)                     5.234
Acura CL 3.2 Type S                       5.200
Toyota Altezza RS200 (J)                  5.192
Mazda MX-5 Miata LS                       5.191
Nissan Silvia K's S13 1800cc (J)          5.175
Mitsubishi FTO GP Version R (J)           5.163
BMW 328ci                                 5.156
Fiat Coupe Turbo Plus                     5.154
Acura Integra Type R                      5.150
Mazda RX-7 Infini III FC (J)              5.137
Toyota Celica SS-II ST202 (J)             5.133
Acura RSX Type-S                          5.130
Peugeot 206 S16                           5.091
Toyota Celica SS-II (J)                   5.086
Chrysler PT Cruiser                       5.046
Honda Civic SiR-II EG (J)                 5.039
Toyota Lexus IS                           5.038
Daihatsu Storia X4                        5.034
Alfa Romeo 156 2.5 V6 24V                 5.025
Honda Civic Type R EK (J)                 5.024
Honda Accord Euro-R (J)                   5.003
Nissan Silvia Varietta (J)                4.961
Mazda MX-5 Miata 1.8 RS (J)               4.926
Honda CR-X Del-Sol SiR (J)                4.925
Toyota Sprinter Trueno GT-Apex AE86 Type I4.922
Mini Cooper 1.3i                          4.900
Mazda MX-5 Miata (80's)                   4.900
Suzuki Alto Works Suzuki Sports Limited   4.873
Volkswagen New Beetle 2.0                 4.859
Mazda MX-5 Miata                          4.858
Daihatsu Mira TR-XX Avanzato R            4.854
Toyota Vitz RS 1.5 (J)                    4.783
Toyota Vitz Euro Edition (J)              4.715
Mazda Demio GL-X (J)                      4.707

Many thanks to AdrenalineSL, DConney and Sam1230 for publishing your
car databases on the Internet -- they certainly provided me with an
excellent jumpstart on this Guide.  Keep it up!

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5:  User Feedback

As expressed in the intro, the Power Ranking is subjective and certainly
debatable.  Thus, please send me your feedback, but without flaming me.  
I will try to publish as much feedback as possible, plus I'm open to
revising the formula based on your input.

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6:  Revision History

Version 1.0 9/24/01 - First Edition.  Here it is

Version 2.0 3/29/02 - Revised the cornering part of the Power Ranking
Formula

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7:  Legal


 This FAQ can only appear on the following sites:

 GameFAQS <www.gamefaqs.com>
 CoreMagazine <www.coremagazine.com>
 GameSages <www.gamesages.com>
 Vgstrategies.com <http://vgstrategies.about.com>
 GameShark.com <www.gameshark.com>
 FAQ Domain <http://nemmysresource.cjb.net>
 Happy Puppy <http://www.happypuppy.com>
 ZDNet/Videogames.com <http://www.videogames.com>

If anyone finds it on any other site, please inform me ASAP.

E-Mail Address: vitzrs1_6@hotmail.com

Copyright:
 Copyright 2001 Palfy. This FAQ and everything included within this file 
cannot be reproduced (physical, electronical, or otherwise) aside from
being placed on a freely-accessible, non-commercial web page in its original,
unedited and unaltered format. This FAQ cannot be used for profitable
purposes (even if no money would be made from selling it) or promotional
purposes.  It cannot be used in any sort of commercial transaction. It
cannot be given away as some sort of bonus, gift, etc., with a purchase
as this creates incentive to buy and is therefore prohibited.