There's no comparison. If two equal drivers were used, the MX4 would wail on the "old" car. it's like comparing an original rc10 to a B3! The new car is much lighter and more adjustable. You don't say where you'd run the car though. Yoko's new shocks are the smoothest I've ever seen. I've got two of them...The only bad part is if your local track stocks parts. Most don't.