The E10 is a far better car than the TT01 and there's nothing needed to hop up. it drifts as is out the box. Yokomo also makes a GREAT kit, but it's pricey. If your money puts you between TT01/E10, I'd DEFINATELY go E10. Just a better car imo. Nothing wrong with the TT01, but the E10 is just better to me.

and, +1 to Fresh. It's really about driver skill.