We ran the car for two years in Australia. The link Roelof posted should have plenty of information. But at the end of the day HPI hasn't released a single new part for the car since it was released. The factory drivers don't run the receiver in the stock location due to the issues they have with heat from the exhaust. They also run a custom rear 2 speed shaft not available to anyone else that uses Capricorn Kevlar pullies.