Well anything with a 4s Lipo will break traction, and once at high speed air gets in the body, making a wing or parachute taking wight of the wheels, causing less traction. That's why you see ShortCourses spin or blow-over or even randomly go into a rampless jump.
Im not sure of many makers that make on-road 1/16 tires is the problem. That's why I still kind of don't like Traxxas's choice on 1/16... no very main-stream I guess the phrase would be
the only thing I can think of is a Traction compound on the tires, or more down-force on the body :l
EDIT: After doing a bit of googling... I found I know nothing about On-Road and there's no traction compounds of solid rubber tires, there are only for foam tires.