Proprietor of Diff Technics, Con Koutas' XY Ford sedan uses ARC rolling pivot leaf spring traction bars to achieve 11.1 sec E.T.'s from this street driven car.
More impressive is the fact that this car uses a 4 speed manual gearbox and 29" x 11" tyres! The eventual results were a long time coming as Kon replaced and refined almost everything in the front and rear suspension. It was not as easy to get to work as auto equipped cars with a similar setup.