I'm in the same boat. I've put aside 14.5 million and I'm running short races repeatedly to keep the used car dealership refreshing. Hoping to get the 2J and finish this mess of a race. I absolutely hate the track. Too darn many tight, slow turns and with the cars in the race, if you don't get out front right away and never mess up on the dang turns you're toast. No room to recover.
I'm guessing the 2J keeps coming in 1st? It seems to really pull away from the pack on that course. Maybe keep restarting the race until the 2J isn't in the lineup any more, or at least until it's starting near the back of the pack.
You need luck. Persist till your Toyota 7 takes a lead then its all the way to victory. It took me umpteen attempts with this car. Your driver need not be lvl30 as at that time my driver was only around 21.
There is a pretty tight turn that my b spec driver always used to hit untill i paced down through that turn and then paced up through the rest of the track...i used the Toyota and it was pretty close but my b spec was like level 24...didnt get in first untill second to last lap