thanks for the help psycho. the track is cleened with a broom before racing but i dont think the soda is too good an idea unless i told the guy who runs the track about it and he thought the bug sprayer was worth the cost. i will try the tires that are coming with the car before i do anything to them because they might work well after all. when using a cap does the foam tire act like an insert with rubber tires. like if i have a caped grey foam will this have more traction then a caped purple foam.