well today i ran my car for about 4 hours not one problem only died once and thats because it fliped over about 200 ft away and didnt get to it in time, im surprized this thing is as fast as it is...my friend was running his traxx (not sure the particular make) but mine smokes it..all i can say that its a shame a $156.98 can smoke a $500 dollar truck, and his kept needing tuning...only problem so far is the rear springs on the smartech sucks!!!! it sqwats bad in the rear even after i streched the springs out