1/5th Scale Rear Wheel Drive 1/5th scale is the largest scale at England Park. The challenge is to manage power without compromising handling. Extreme Braking They have 4 wheel disc brakes and are either hydraulic or cable operated. It's not speed that breaks the car, it's the sudden stop. Setup & Geometry They have all the adjustments of a full size race car and run on rubber tyres with a variety of compounds and tread patterns to choose from.