How on earth did I miss this? I've never had the chance to do a PWD car, but I did do a C02 powered PWD style car in Middle School, in fact, I still have it as it was the fastest car my teacher had ever seen. The "track" was the hallway with strings attached to the wall. The cars ran on the guides, most cars didn't get to the end of the hallway, mine nearly created a wake and smashed into the wall at a pretty good clip still.
....
Amazing things happen when you grease the axles and make sure everything in the drivetrain is perfectly straight, plus you take time to align the motor with the front wheels to create minor lift w/maximum traction (yes I was a nerd in 7th grade, sue me).
I will bring it with if I can find it.