Modified Cars for Sale in the UK

The UK's dedicated marketplace for modified, tuned, and performance cars. No standard stock — just cars that deserve attention.

Modified only

No standard stock. Every car on Madlows has been worked on.

Checked by hand

Every listing is reviewed before it goes live.

Direct to the seller

Talk to the owner or the dealer, no middleman.

Recent Listings

2020 BMW M4 3.0 BiTurbo GPF Competition DCT Finished in Alpine White with heated full leat
£36,980

2020 BMW M4 3.0 BiTurbo GPF Competition DCT Finished in Alpine White with heated full leat

Fareham, Hampshire
27,000 mi
Petrol
Automatic

Finished in Alpine White with heated full leather interior, running in service carried out at 1,218 miles on 15/09/2020, M4 private plate available, flat bottom half Alcantara steering wheel, carbon M

2016 Audi RS6 4.0 TFSI V8 Performance Estate 5dr Petrol Tiptronic quattro Euro 6 (s/s) (60
£40,000

2016 Audi RS6 4.0 TFSI V8 Performance Estate 5dr Petrol Tiptronic quattro Euro 6 (s/s) (60

Luton, Bedfordshire
56,500 mi
Petrol
Automatic

Performance enthusiasts will appreciate the Milltek Exhaust and APR Stage 1 Remap, which elevate the driving dynamics to new heights. The Dynamic Package and Wheel Spacer Kit further enhance the handl

2017 Bmw 1 Series M140i
£15,950

2017 Bmw 1 Series M140i

Chester, Cheshire
88,000 mi
Other
Other

⚫STAGE 1+, ⚫19" ALLOYS ON 10MM SPACERS

Modified Cars for Sale

Madlows is a dedicated UK marketplace for modified and performance cars. Whether you're searching for a Stage 2 Golf GTI, a big-turbo BMW M140i, a track-ready Focus ST or a fully built show car, you'll find enthusiast-owned vehicles from across the country.

Unlike general car sites, Madlows focuses exclusively on modified cars for sale in the UK. That means no standard stock vehicles or dealership filler — just tuned, upgraded and performance-focused cars listed by real owners.

Performance and Tuned Cars Across the UK

From Stage 2 daily drivers to full Stage 3 track builds, Madlows lists the kind of cars you won't find elsewhere. Browse project cars that are ready for your next build, or pick up a turn-key performance machine.

Sell Your Modified Car

Got something special in the garage? Sell your modified car for free on Madlows. Your listing goes out to a focused audience of enthusiasts who actually care about what you've built — not tyre-kickers browsing mainstream sites.

Want more visibility? Upgrade to a Featured Listing to appear at the top of search results and reach more serious buyers.

Ready to sell your modified car?

Madlows is built for one thing: modified cars. Your listing goes in front of people who came here specifically to find them.