Looks like a Jaguar XK-SS - very rare find - only 16 made before production ended due to factory fire, most exported to US with LHD. Looks modified - windscreen too tall maybe has E-Type replacement?? and the big square bonnet vent is not original - maybe has US V8 instead??

Not obvious from http://www.coventryracers.com/cars/results/ which one this is, but many entries there have gaps in their histories. Or it could be a replica - Lynx did a few and there were others - but photo date may be too early.