The Clubman MS8 track racer and boasts full design treatment by Holden and the performance of the Gen III 5.7 litre V8 powertrain, while sports chassis design and construction is by the Elfin Sports Car company. Aimed squarely at the weekend club racer and historic vehicle enthusiast market, the V8 roadsters will be hand-built to order by Elfin.

A smart, modular-style interior common to both cars provides the necessary basic comforts in minimalist fashion. Exposed interior surfaces are body-coloured throughout, highlighting the naked silver frame and accentuating the cars' open-top nature. The customary low-backed bucket racing seats, trimmed in black leather, are fitted with four-point racing harnesses. The park brake and grab handle are also leather-trimmed; while the back panel is finished in quilted suede.

The Elfin prototype vehicles on display at the 2004 Melbourne International Motor Show are the result of collaboration between Elfin Sports Cars Pty Ltd and Holden Ltd. Elfin intends to call the open-wheel track racer the MS8 Clubman and the enclosed body roadster the MS8 Streamliner. MS8 Series Elfins are equipped with Holden powertrains - Gen III 5.7litre V8 engine, six speed manual transmission, 'V' car limited slip differential, ABS braking system, traction control and associated controls and sensors.