Ford Sierra Cosworth for Sale

What to Look For

• Turbo failures on Cosworth/EcoBoost engines
• Head gasket failures on older Cosworth engines
• Rust in structural areas (especially older models)
• LSD (Limited Slip Differential) wear
• Theft target — verify provenance and VIN carefully
• YB Cosworth engine — head gasket and turbo issues
• Rust in sills, inner wings, and around rear axle

Pre-Purchase Checklist

• Compression test on turbo engines
• Check turbo for shaft play
• Thorough rust inspection
• Verify LSD operation and condition
• Check for accident damage — these get driven hard

Useful Resources

• https://www.passionford.com/
• https://www.rsownersclub.co.uk/

Recent Articles

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Frequently Asked Questions

Is the Ford Sierra Cosworth a good investment?

The Ford Sierra Cosworth scores 63/100 on average, making it a moderate investment prospect. Look for well-maintained, low-mileage examples to maximize returns.

What is a fair price for a Ford Sierra Cosworth?

The median asking price is €42,000, with listings ranging from €7,600 to €175,106. Final transaction prices may differ depending on condition, mileage, and provenance.

How many Ford Sierra Cosworth are for sale?

PistonAlpha currently tracks 163 active Ford Sierra Cosworth listings from dealers and auctions across Europe, updated daily.

What should I look for when buying a Ford Sierra Cosworth?

Key areas to inspect: Turbo failures on Cosworth/EcoBoost engines; Head gasket failures on older Cosworth engines; Rust in structural areas (especially older models); LSD (Limited Slip Differential) wear. A pre-purchase inspection by a marque specialist is highly recommended.

How have Ford Sierra Cosworth prices changed over time?

Prices have risen from €22,000 (1986) to €42,000 (2025), a gain of 91%. Values peaked at €62,992 in 2022 and have since corrected 33%.