Me and my friends have been driving MP 7.5 Sports RTR for two summers and think it is time for a step up. We only drive on a slope grass lawn and never competes except with each other.

Should we buy three Matrix or three Hellfire? Since we are running on grass we have very good grip but sometimes to good, MP 7.5 often rolls over when turning too hard. Think we need powerful engines since grass is not as fast as dirt. A reliable engine is of course a must after being used to the engines in the Kyosho. . .

Please help us choose!