Well, I won the Subaru WRX prototype last night. It's awesome to say the least. All it took was some soft racing tires on my RX-8, and I shaved off 5 seconds per lap on the very last rally race (in the rain). Racing tires are a must. The WRX starts w/ 301hp, but after the stage 3 turbo (the only option you can buy is the turbos, it comes with everything else) the horsepower is up at 593. WOW!!! I think I can sweep the whole rally series now.
Also, I have a suggestion that came w/ Electronic Gaming Monthly:
They say to save up all of your money, buy an EVO (dunno which one exactly), then soupe it with some hp mods, and some hard racing tires. Enter the endurance race, and pit every 10 laps. Everyone else pits every 6-8 laps, and they will be hard to keep up w/ but over the entire race, you can make up an entire lap on your pitting strategy alone. Now the goal of winning this race is to get the GT40, you only have a 25% chance, because there are 4 possible cars you can win. I guess if you don't get it the first time, try, try again. Once you have the GT40 it's all over, you can race almost every possible race in the game and just clean house. I'm gonna try to win the endurance race w/ my RX-8 or WRX this weekend and I'll let you know how it goes. late.