It's amazing what turns up after years and years - I was only talking to someone recently about the Rutherford lightweight cars - and then this turns up !
Mark,
The advert states it as a +8, but if you go to the eBay advert it says the engine is 2000cc ?? I do recall Robin Gray racing a +8, but wasn't aware David Rutherford had prepared this car, I always thought he developed the racing 4/4.
Best Regards,
Eddie Singleton.