Considered one of the most significant touring cars from the 1980s, this Sierra RS500 Cosworth offers a once-in-a-lifetime chance to own a key piece of motorsport history. With only 500 examples ever produced, its rarity is further amplified by its pristine condition and limited mileage, clocking in at just 48,300 miles. Finished in a stunning black exterior, this particular model hails from the revered Squadra Lupo collection, known for its attention to preservation and authenticity. The vehicle’s historical importance is difficult to overstate. It represents not only the golden age of rally and touring car racing but also Ford’s commitment to engineering dominance through its collaboration with Cosworth, one of the most respected names in high-performance motorsport technology.

The Ford Sierra RS500 Cosworth was a homologation special designed specifically for Group A racing, a series that was fiercely competitive in the 80’s. To meet the stringent homologation requirements, manufacturers like Ford were required to produce road-legal versions of their race cars, with enough units sold to qualify for competition. What set the RS500 apart from the standard Sierra Cosworth was its series of upgrades, primarily orchestrated by Tickford, which included a larger Garrett turbocharger, revised intercooler, and other mechanical refinements to enhance power and performance. The result was an astonishing 224 horsepower from the 2.0L Cosworth YB turbocharged engine—impressive for the 80’s, especially for a car based on a humble family sedan.

What makes this specific RS500 especially noteworthy is its meticulous preservation and unmodified condition. While many RS500s have been heavily tuned or altered over the years, often for competitive or performance purposes, this example remains in near-original factory specification, which adds to its collectability. Its previous owners have clearly taken great care to maintain both its mechanical integrity and visual appearance, with recent service records detailing preservation work, new tires, and a complete mechanical overhaul. 

This 1987 Ford Sierra RS500 Cosworth is a standout at Bonham’s Audrain Concours Auction, breaking away from the usual lineup of more predictable platforms. As a niche vehicle, it certainly appeals to the right collector, but admittedly this is cool! A platform that embodies the spirit of the underdog, a true “root-for-it” player that appeared in the rally scene just after the Group B mania. This car serves as a testament to Ford and Cosworth’s tenacity in motorsport, keeping the rally dream alive with engineering brilliance long after the spotlight shifted away from the legendary Group B era.

While the starting bid has not been disclosed at the time of the listing, the exclusivity, condition, and historical significance of this RS500 Cosworth will undoubtedly make it one of the most sought-after lots at the Audrain Concours Auction.