Ford Sierra

The Ford Sierra replaced the long-running Cortina in 1982, introducing a radical aerodynamic design that was initially polarizing. While base models were everyday family cars, the Sierra's legacy was cemented by its high-performance variants, particularly those developed with Cosworth. The three-door Sierra RS Cosworth, its homologation-special evolution the RS500, and the later four-door Sapphire Cosworth were built to dominate Group A motorsport, and they did.

Collectors almost exclusively seek out the performance models. The XR4i and XR4x4 offer a fun rear-wheel or all-wheel drive experience, but the turbocharged Cosworths are the main event. Their giant wings, aggressive styling, and touring car racing success make them icons of 1980s performance. A rich history of tuning and modification means finding a standard, well-preserved example is difficult and adds a significant premium.

The market for Sierras is almost entirely defined by the Cosworths. An average sale price of over $36,000 shows that pedestrian models rarely trade on the collector circuit. Pristine, low-mileage RS500s can command six-figure sums not reflected in this data set, while more common Sapphire Cosworths and modified cars make up the lower end of the enthusiast market.

Based on 8 recent sales, prices range from $15,805 for project or lesser models to $77,500 for top-spec Cosworth variants.