In line with the BTCC theme, how about some classic saloon car racers from its predecessor, the BSCC? We already have Frank Gardner's Camaro (in two versions!), the Britax Mini (a bit of a cheat her as it should be a Mk II), and several Cortinas and Escorts.
An easy one would be Gardner's 1970 Mustang, which was an ex TransAm car, already in the Scalextric range.
Then, a works Mini Cooper in the classic green and white stripe.
But the two I really want are a Mk II Jaguar and a Ford Galaxie from the early sixties. What a 2 car set they would make!
This years BTCC winning Honda Civic in Orange Halfords livery please.