Designed by Keith Marsden, the Elva Mk VII was built during 1963 and proved to be a great success, showcased by a fantastic win for the 'out-of-the-box' Porsche-engined car at Elkhart Lake for the Road America 500.

There were 19 Elva-Porsche cars built, but other engines were fitted including Climax, Ford DOHC, Ford 1,100 & 1,600, and Osca, with two cars being supplied without engines.

The Mk VIIS was the upgraded car for 1964 when the BMW power unit became the engine of choice, and this included modifications to the chassis (particularly to strengthen the engine bay area), larger brakes with Girling AR calipers, wider wheels to 6" and 7" rims, modified bodywork to accommodate, and various other mods.

The build list suggests 15 BMW-powered cars were factory-built, however, a number of earlier cars have subsequently been modified to BMW-power and to Mk VIIS spec.

The BMW engine was developed in conjunction with BMW by Nerus Engineering under the control of Frank Webb based on the 1...