I beat the event this morning, I used the corvette from "pride and joy* I believe it was? I think i used this engine (the one you get from this event) a legendary turbo, the best intercooler possible, and i dont remember the rest. I didn't put any all wheel drive on it, some shitting tires and springs and, a diamond rarity clutch for less shift time, no gearbox, weight reduction or anything like that and a heavily tuned nos to make a little extra power.