They had considered a number of cars but were focused on finding the best RS500 they possibly could. The tooling itself is ultra satisfying, at first glance you feel the bodybuilding look of the Cosworth. The car is low, but not too much, the aggressive wheel arches are stunning such as the always very detailed wheels. The tooling is engineered to be both street and racing. It works. In addition, we shall see some Rally versions later. This sale happened because of a unique set of circumstances: an ultra-low mileage car, maintained fastidiously by its owner in a great colour combination attracted two very dedicated buyers who both wanted to buy it. Rear-wheel drive with Borg Warner T5 five-speed manual gearbox, viscous-coupling limited-slip differential, 204mm clutch. Final drive ratio: 3.65:1 Big money chases factory-original Cossies, so many masquerading as unmodified cars led previous lives as 500bhp hooligans.

Misfires are common; the rotor arm, dizzy cap, leads and plugs must be 100% (or uprated to a wasted-spark system). Crank and cam sensor settings are also critical. Always compression-test a misfiring engine before buying, in case a holed piston or similar is to blame. Buying anything at an auction is an exhilarating experience and it is easy to get caught up in the moment of seeing these fantastic cars, from roaring supercars to our much-loved classics, parading up and down the runway. The rarest colour option is Moonstone blue, of which there were 52 vehicles. The remaining 56 models were the full Essex-spec Diamond White. Silverstone Auctions said before the auction on Saturday that 'the attention to the detail of this car's maintenance cannot be understated' Rust is a serious Sierra problem, but by now most three-door Cossies have been restored or in need of very little work. But don’t take it for granted; even a low-mileage or renovated car requires a thorough inspection.They’d come home much earlier than I’d expected, unannounced, and were absolutely furious with me. They got over it though. Eventually. In April 1983, Turner's team decided on the Sierra as a basis for their project. The Sierra filled the requirements for rear wheel drive and decent aerodynamic drag. A racing version could also help to improve the poor, and somewhat undeserved, reputation that the Sierra had earned since its introduction in 1982. As shown on the odometer here, the Sierra Cossie RS500 has covered just 5,192. That works out at an average of 144 miles each year since new in 1987 A number of other contenders were rejected before stumbling across 'E378 TKN' which they believed was - and still is - the best condition Cossie in the country. Perhaps we shouldn’t be surprised. Fast Fords have been fetching big money for many years and the RS500 Cosworth is one of the most desirable modern classics you can buy. It’s also peak Cosworth.

The cooling fans also need their own electrical supply. Engine bay wiring degrades with heat and age, sending intermittent signals to the ECU: again engine failure can result. Old and poorly installed alarms give many problems. The RS500 also had minor external cosmetic differences to its parent the Sierra three-door Cosworth: The car’s history file contains the original service book, dealer directory, audio book, and RS500 supplement along with maintenance and service invoices dating from November 1992 through to most recently in November 2021. This latter service was carried out by Parkway Specialist Cars at 35,580 miles and included the following; renewal of engine oil and filter, replaced spark plugs, replaced air filter, replaced fuel filter, renewal of brake fluid, replace cambelt, replace ABS sensor, replaced discs and pads both-front and rear and fitted 5 new tyres. The original Ford Sierra RS Cosworth three-door is ultra-cool, immensely tuneable and extremely desirable. Here’s how to buy a bank-beating investment that’s equally able to annihilate your wallet…Although this will have some effect on the values of other examples of the RS500 model, a repeat of anything near this sale price is very unlikely. In January 1990 the third generation Sierra RS Cosworth was launched, this time with four wheel drive. As early as 1987, Mike Moreton and Ford Motorsport had been talking about a four-wheel drive Sierra RS Cosworth that could make Ford competitive in the World Rally Championship. The Ferguson MT75 gearbox that was considered an essential part of the project wasn't available until late 1989 however.