The 1959 Troy Roadster is a one off, road legal race car designed and built by Wally Troy in Wally was the first Jaguar.Formula 1 cars of the era.
Zolland Design AB, a Swedish graphic arts and design firm that also goes by the name Vizualtech, has rendered an Indy Roadster style body they call the IndySeven with the correct dimensions to fit on a Caterham or Lotus Seven chassis.
Indy Roadster by Zolland Design - The Truth About Cars
Amperstand Tee by UGMonk - Silodrome
Caterham reveals it's newest model: the Caterham Seven 160 (Caterham Cars, Caterham Seven Cars)
Lotus Super Seven