I didn’t have the problems you had with the drivetrain. Only a clutch once but it seems to be really reliable and the R10 in my opinion handled quite well. I do have a permanent reminder about using the jack handle to crank the engine. I did it once and goy a pop back and the handle grabbed my thumb. I still have trouble with it to this day. The car was so light that it was much easier to walk it and hop in it to pop the clutch when the battery went dead.