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GCAP Performance are one of London's premier classic and supercar specialists. We specialise in sales/acquisitions, servicing, upgrades, security and general maintenance of all super/hypercar marques.

Owner and founder Gary Conway is a car enthusiast before all things. He has owned and built a number of award winning show cars, featured in many automotive magazines and even appearing on television (see our PRESS section).

Gary Conway comes from a family of well respected automotive figures. His father being a well known name in the automotive industry. His business, Air and Sound, went from a small garage in West London fitting car alarms, to building demo vehicles for some of the biggest car audio manufacturers in the world. With this wealth of knowledge behind him it was inevitable Gary would follow suit in the automotive trade. After several years studying Motorsport Engineering and equipped with experience working with a major racing company, Gary founded GCAP Performance.

GCAP's humble beginnings began with installing bolt on upgrades from the London workshop. As the company grew, so too did the services offered. GCAP now exclusively look after some of the largest and most prestigious private car collections in the UK. GCAP continue to offer servicing, maintenance, security, performance modifications and general repairs to all brands of supercars and hypercars, whilst offering those with larger collections a full comprehensive in-house service. GCAP take the struggles of managing and maintaining a large collection away from the ownership, so you, as a collector, can simply enjoy your vehicles.



Based in Notting Hill, West London, GCAP Performance has an extremely well equipped, state-of-the-art and uniquely clean facility which gives you peace of mind, knowing that your vehicle is going to be looked after from the minute it arrives, to the moment you collect it.

We have a customer waiting room where we invite you to sit back and relax whilst we work on your pride and joy. We have free Wifi, Selection of movies, TV shows and magazines to make your wait enjoyable. On display we have a vast range of products we stock so customers can be hands on with the items to help them plan their next step with their vehicles.

We have a huge parts department dedicated to keeping a vast array of parts in stock to ensure all web orders are dispatched as quick as possible.

We are minutes away from the world famous Portobello Market offering a vast array of shops, stalls and restaurants. We are also a stones thrown away from Westfields should you wish to indulge in some proper retail therapy, enjoy a movie at the cinema or treat yourself to some great food.


For your car's protection, and for ours, we are fully insured for all cars that enter our workshop. Our policy covers us for in excess of over £15,000,000+ on a single vehicle. We have a 24 hr recorded CCTV system and a full workshop alarm system, it's safe to say that your car's security is of our prime concern. We pride ourselves on our clean, safe and modern premises and are confident you will be happy to leave your pride and joy in our hands.

GCAP Performance London


​Alongside Gary, the team consists of a leading auto-electrician who specialises in can-bus wiring and diagnostics and a Royal approved Jaguar engineer.  Between the team we have over 100 years experience in the automotive trade. We can cater for all vehicles from classic motor vehicles to million pound supercars. With our unique set of skills each of the team members provide, we can ensure no matter the problem, the modification or build - we have the ability to deliver every time.

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GCAP Performance have been recognised globally by many major automotive publications. From bespoke builds, in-house developed parts to buying guides, GCAP Performance have a comprehensive portfolio for all to see. If you would like to browse such articles, please CLICK HERE.

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