We take the standard Leon Cupra road car onto a racing track and compare it to the souped-up racing version.The Leon Cupra is designed to give a high-performance feeling on the roads, with 240 horsepower from a modern two-liter turbo engine. Pure power combines with a lower chassis to make the Leon Cupra almost the same as the racing version in the World Touring Car Championship and the Seat Leon Supercopa. But can it match the racing model?