• A 1987 example of the Fast Ford sold at a Kings Lynn auction at the weekend
• It has covered fewer than 7,500 miles from new and has had just one owner
• That keeper put the Sierra RS Cosworth into storage in a garage in 1991
• It's barely moved since, hence the supremely low miles (and lots of dust and dirt)

A Fast - and filthy - Ford sold at auction this weekend proves there's still plenty of appetite for the brand's iconic 1980s cars among collectors.

This 1987 Sierra RS Cosworth has one owner from new and barely turned a wheel since 1991 having been kept stored in a garage gathering dust ever since.

But despite its shabby appearance, the car - with fewer than 7,500 miles on the clock - caused a bidding war between enthusiasts, with the eventual lot winner handing over almost £86,000 for the keys.

The 80s Ford was sold at the Anglia Car Auction's sale in Kings Lynn on Saturday for a staggering £80,000 - £85,760 when you include the auction fee and VAT.

While this is some way off the £122,400 record sum paid at auction for an RS500 Cosworth in 2017, it's an incredible fee looking at the shabby exterior of this slightly less desirable example.

But the dirt and dust goes some way to explain why it commanded such interest - and might exceed the price someone has just paid for it.

That's because it's one of the least-used examples surely in existence today.

The car's odometer indicates that a mere 7,349 miles have been covered in the last 32 years, and few of them have come in recent times.

That's down to the one and only owner of the car who bought it back in May 1987 only drove the Sierra for four years before placing it in storage in Ascot 1991 - which is where it has remained since.

Following the owner's death in 2016, the car was bequeathed to his partner and earlier this year was then passed to the current vendor - a family friend who had worked with the original keeper for around fifteen years.

It was offered to a packed auction room on Saturday 2 November with the full paperwork present. 

That includes the original bill of sale from Stormont Eng.Co. of Tunbridge Wells, service book stamped in 1988, sales brochures, MoTs dating from 1990 and 1991, various documents, owner's manual, wallet and spare keys. 

Guy Snelling from Anglia Car Auctions told This is Money: 'The sale of the low mileage car was an fantastic result and just goes to show that even in a slightly subdued market, cars with exceptional provenance and interesting story do make the money. 

'We had a multitude of phone bids from all over the UK and many more bidders attended the sale in person to bid. 

'The cheers and round of applause at the fall of the hammer was testament to what a fantastic result this was.'

The sale fee was more than five times the Sierra RS Cosworth's original figure when new, which would have been around £16,000. 

In preparation for its appearance in the auction, some work has been carried out to ensure it's mechanically sound after nearly three decades of stagnation.

This includes a new cambelt, and replacement oil and filters.

Anglia Car Auctions said it is in 'good running order', adding: 'In fact it is the quietest Cosworth engine we have heard.' 

It does need an MoT, though, the auction house confirmed: 'The car was presented for an MoT and would have passed with flying colours apart from all four tyres need replacing.

'The MoT station advised that although the fuel tank had to be replaced, the car has never been subject to any welding.'

Production of the Sierra RS Cosworth ran from 1986 to 1992. It uses a 2.0-litre turbocharged four-cylinder engine, tweaked to put out in excess of 200bhp.

While the RS500 was the Touring Car homologation special is the prized example to have and now demands six-figure fees, the lesser RS Cosworth is becoming increasingly popular among dedicated collectors as well as the droves of Fast Ford enthusiasts.

Credit: MailOnline