The sight of rival manufacturers reaping the rewards of a successful circuit racing programme prompted Ford to renew its alliance with engine builder Cosworth to create the eponymous Sierra, assembly of the minimum 5,000 units required for Group A homologation commencing in June 1986 at the company's Genk plant in Belgium. Based on the three-door Sierra bodyshell, the RS Cosworth combined the standard 1,993cc Pinto engine's cylinder block with a forged steel crankshaft and connecting rods, the first time the latter combination had been seen in a production Ford engine. Topping it off was a Cosworth-developed, twin-camshaft, 16-valve cylinder head fed by a Garrett AiResearch turbocharger, the latter being deemed necessary to achieve a competitive power output for racing, which in time would amount to over 500bhp! Even in standard road trim the Sierra RS Cosworth produced a staggering 204bhp, its Weber-Marelli engine management system ensuring that the resulting stupendous performance was delivered with minimal turbo lag. Needless to say, the standard Sierra underpinnings were comprehensively up-rated to cope. Only 6,021 examples had been completed when production ceased in 1986 and today the model is much sought after.
This Sierra RS Cosworth has had only two previous owners. 'J923 BVW' retains its original wheels, body panels and paintwork, the latter preserved in generally good condition apart from a few cracks and blemishes. The car is finished in Moondust Silver (pinstriped black) with original black cloth Recaro interior showing only slight wear. A total of 34,988 miles is currently displayed on the odometer, while the accompanying service history records routine servicing at 18,000, 24,000 and 30,000 miles. Offered with original owner's handbook and extended warranty card, this Sierra Cosworth represents a rare opportunity to acquire a little used, original example of one of the most exciting road-going four-seaters of recent times. In storage for several years, the car will require re-commissioning before further use and thus is sold strictly as viewed.