The 3.5 Litre was a sports car built by the British automaker Lea-Francis from 1980 to 1992. It made its debut as the "3 litre Sports", but a new, longer version of the car was unveiled in 1992, which was dubbed the "Ace of Spades", after an earlier model of the same namesake. Only six examples were produced.

The 3.5 Litre was fitted with a 3442cc Jaguar XJ6 engine. It was built using a ladder-type box chassis frame made of aluminum.