My 7 year old son is making a start in on road racing. (He has only had toy grade r/c's before) and will have a tt01e.
I will start him out with box spec.
In the next few races if his game improves, I will put the following in.
ballraces, 27t motor.
After that, I will give him my ta05 to go even faster
I dont think it is a car that will handle too much motor, the driveshafts and propshaft are all plastic and will wobble under heavy load.