The Rocket for an easy win for the Willow race. A Lotus Elise 111R might be a nice challenge for those who want one! I'm not a particularly fast racer (partly because I use a controller, and mainly cause I keep falling off the track!)
For the Le Mans 24 min race, I used a Minolta Toyota, and stopped for pitstops 3 times. Starting on IM, pitting after 2 laps, pitted again after 2 more laps, onto RM for a single lap, then pitted again for RH. Made sure that I crossed the line on the 6th lap before the 24min duration was up. Should be a very easy win for most of the more experienced players.