i have 2 bit char-g
i like them cuz they are customizable. and they're not that fast so you can run them on the table. with 1.0 motor. lots of torque and not too fast to run on a crowded desk.
for speed i have another car with 3.0 with boost. that thing is so fast that it can't really turn cuz the front wheels doesn't have enough grip and you HAVE TO run the car on the floor cuz there's no way in heck you're gonna be able to steer the car fast enough.
i think bit char-g will be cheaper and easier to drive since you can just swap the motor and get different speeds.