Ford Sierra tipped to sell for £105,000 - more than FIVE times what it was worth new A 31-YEAR-old Ford Sierra is tipped to sell for a staggering £105,000 - more than five times what it was worth new. The RS500 Cosworth was one of just 500 models made in 1987 and cost around £20,000 new. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:New Nissan Leaf 2019 leaked? Faster, higher power car with more range CONFIRMEDHyundai's new hydrogen-powered car will do 500 miles on one tank Used car scam exposed - Motorists could be entitled to hefty refund, this is whyKia Niro EV all-electric concept car will debut at CES 2018Diesel car sales PLUMMET - Should you still buy one? What are the benefits?Volkswagen T-Roc review: Smaller, lighter and more compact SUV