Yes, but you have to have 2 memory cards to get them, If i rember correctly it goes something like this: (Read: To shorten the process... Have a lead large enough that going into last race you can't lose, Save before last race. This is very important if you are rushed for time.)
Step1:Win Event (doh)
Step2:Go save game to 2nd memory card, and then reset.
Step3: Load your save from the first memory card then repeat, with the following step added.
Step4:Buy the first prize car from your second save then save to your second memory card.
Finally: Repeat until all cars are obtained. Works on all other gts, also.
