Well ive had an r40 good car high on the wear factor gears belts etc but most importantly the lack of parts unless your going to shop overseas bypass this car go for a serpent 710 Idid! excellent parts backup and same day shipping in most cases give the guys at hobbytown a call 98963277 or call darrin at custom model on 95794007 bypass the kyosho rrr for the same reason as the r40 parts supply hope ive helped.