Built immediately after World War II on the sight of a half-mile dirt oval (which had been used as early as 1900), the New Jersey State Fairgrounds was a mainstay of IndyCar and Champ Car racing until 1979. Paved for its second race in 1957, it was a lightly banked oval. It was extended in a unique “kidney” shape with a 20 degree dogleg in the backstretch – a deviation required when an stubborn neighbour refused to sell her house. Trenton was always well attended and traditionally held two races, one in the spring and one in the autumn. The site is now a sculpture park, housing estate and UPS warehouse.