Ran my M03-M Swift for the first time last night. I'm running the black tin Tamiya Sports motor and TA03 ball diff in it and had a great time. The car has a bit of bump steer, which I'll fix with a different servo horn. Loved the way the car went, drove it like how I drive my 415, and seem to go pretty well, but you have to be really sensitive with throttle movement in corners. With mine the rear end will step out if you get off the throttle too quickly. Plus need to shoe-goo my screw in the diff, damn thing kept coming loose.
Great little car, can't wait to race it more.