I admit, I'm fairly new to the Wipeout series (Only played Pure, Pulse, HD/Fury, and this), but one of the things I liked was being able to choose any ship, and I took quite a liking to Qirex rather early on. I was excited to use my favorite team in the game... when I realized I was forced to use Feisar, my least favorite team. Bit the bullet because it wasn't a traditional Feisar sacrifice-everything-for-cornering craft (and because I didn't have another choice), and I kinda like it. Kept playing, eventually unlocked a few more ships. I've got all the Feisar craft, and a couple others in the other categories, but aside from the Prototype challenges, I cant figure out how the game decides when it's time to award a new ship, or how it decides what ship to give you. I really want the Qirex Speed ship, seeing as the Fighter and Agility models are both painfully slow, but the game seems to be giving me everything but that >.> I'm level 15 right now, starting the 2049 season. What determines when I'll get that ship, and is there any way I can accelerate the process?
Currently Playing: TF2, Killing Floor, Beat Hazard, Borderlands
Most of the ships will be unlocked as you gain experience and rank. You'll also notice on the campaign grid that the seasons have branches away from the main races. There are large nodes at the end of them, a few of those unlock new ships when they are passed. Further prototype challenges are unlocked as you rank up.
Qirex Speed is Rank 24
PSNID - Hellfire_WZ
'The path of my life is strewn with cowpats from the devil's own satanic herd' - Blackadder II
If you want to see what levels each of the ships unlock at, keep your finger pressed on the ship you wish to unlock and it'll tell you when you'll have it.