Here's what I did. Mazda MX-5 LS (Won from golds on License test).
ASM 5
TCS 2
Oil Change, and medium-slick tires
I pitted on laps: 8, 16, 24 and 32
AI Pitted on laps: 3, 6, 9, 12, 15, 18, 21, 24, 27,30,33,36 and 39
Encountered lap traffic on lap 20
MX-5 LS + 1 lap
MX-5 1.8 + 2 laps
MX-5 1.8 + 2 laps
MX-5 + 2 laps
MX-5 + 2 laps
Best Lap : 140.118
Total Time: 7012.685
Average Lap: 1'45.317
And I walked away with a 100,000 and a Green Miata!
Take it nice and smooooooth and you'll come out on top.
AO