Gs storm or thunder tiger tomahawk truggy st
 

hey guys i have 2 cars both of the ones in the title but i wanna consentrate on one car but i dont know which one so here is the low down, the gs storm is going sometimes somties it doesnt cause there is somfin wrong with itbut i dont know what but i like this car and it has some speed on it, and the tomahawk truggy is going well just need to tune it also the parts rmostly stock so i need to upgrade
so what sould i do fix the gs storm or upgrade the tomahawk

cheers jack