Raced the 416 in 23T class yesterday! I kept it box stock, and the impression is great! It turns in really well, almost too much, but the rear stays planted. Once I got used to it, I was blasting through the turns, and got the fastest lap of the day! The biggest factor here are the motor position and chassis flex. The pushed back motor (5mm more than 415) gives better rear traction, and the chassis flex brings out the tire's potentials. I say it is an excellent car for asphalt racing. Need to try out carpet next...