This company creates 1/2 scale models of real cars

Jaguar E-Type 1/2 scale

Mercedes 300SL 1/2 scale

Group Harrington apparently makes 1/2 scale models of real cars. The models the produce include cars like the Porsche 356, Mercedes 300SL, Jaguar E-Type, Willys Jeep and the Bugatti T35. You can find them on http://www.groupharrington.com/en/page/12/junior-cars.html.