The Rarest Cosworth Ever? 500BHP RS500 Barn Find Restoration Begins | Raj's Garage

I still can’t believe this happened… I’ve just bought a Ford Sierra Cosworth RS500 and it's a genuine garage/barn find that’s been sitting neglected for years under a cover and is coated in moss and mould. The cabin smells absolutely rotten and at some point, mice even decided to move in! The deal was on, then off, then somehow back on again but against all odds, I managed to pull it off. And this isn’t your average RS500… it’s been heavily modified to over 500BHP, featured on a magazine front cover and even spent time in Australia before finding its way back to the UK. It’s going to need a huge amount of work, but this might just be one of the most exciting cars I’ve ever rescued. Let’s find out what I’ve really bought…

Added 8 May 2026