1) MR-02 & MR-03 are both rear wheel drive, of course, MR-03 will be more advence la.
2) You may change a set of smaller ratio gear, then will be faster lor. What ratio you are using?
3) AWD are born for drift even it is Original Parts.
I know the highest RPM Motor in the market, made by Audley is 80,000 lor...
& I have seen that there some motors claimed they have 100,000 RPM & 130,000 RPM...
Hard to believe that there are Over 200,000 RPM wor...
Anyone can confirm...
Beside the RPM, I saw some old post here, & heard that most of the mini 4WD Motor can't put on the mini-z la, will burn the PCB or FET...
The seller is himself ar...
& I mean the Factory is not trust worthy je...
Also, there will be risk to using it even on the mini 4WD la, the motor might burn itself, & your car might be running on fire.