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:You may NEVER get caught in rush hour again, thanks to THIS awesome new techPavement parking 2017 - Offenders near schools to be targeted in new warningVintage car which featured in 1942 film Casablanca up for sale for £128,000New Skoda Karoq - Compact SUV looks to build on Kodiaq successOwn a Ford, you car just got a MAJOR upgradeBentley unveils SUV customised for FALCONRY enthusiasts