Caterham Roadsport 155

A beautifully developed and highly usable Caterham Roadsport, now producing an impressive 156 bhp, with a superb specification and a strong history of specialist maintenance. This Roadsport is an excellent example of how a Caterham can evolve from an already enjoyable road car into something considerably more focused and exciting, without losing its usability. Originally powered by the Sigma 125 engine, this car has been upgraded with Jenvey individual throttle bodies and updated camshafts by Northampton Motorsport, together with professional tuning to produce an impressive 156 bhp. The engine is complemented by a Caterham lightweight flywheel, with a new clutch and release bearing fitted approximately seven months ago when the lightweight flywheel was installed. Having covered just 20,000 miles, this is a particularly appealing example, combining low mileage with a comprehensive specification and full service history.

The car is currently finished in a striking Mandarin Orange wrap, giving it a distinctive appearance while allowing the original finish underneath to remain protected.

The specification includes:

• Roadsport 155

• Sigma engine

• Jenvey individual throttle bodies

• Updated camshafts

• Northampton Motorsport engine development and tuning

• 156 bhp

• Caterham lightweight flywheel

• New clutch and release bearing fitted approximately 7 months ago

• 20,000 miles

• Ex Caterham Academy

• Lightweight lithium-ion battery

• Track roll over bar

• Carbon front indicator pods

• Carbon rear wing protectors

• Leather seats

• Lowered floors

• Battery isolator switch

• Shift lights

• 13-inch anthracite alloy wheels

• Toyo R888 tyres, only a few months old

• Quick release Momo steering wheel

• LED front and rear lights

• Full windscreen and weather gear

The car was last serviced by Northampton Motorsport in October 2025, and comes with a full service history.

A Caterham built to be enjoyed

What makes this car particularly attractive is the combination of its low mileage, ex-Academy pedigree and carefully chosen upgrades. The Sigma engine is transformed by the Jenvey throttle bodies and camshaft upgrades, giving the car a much more immediate and purposeful character, while the lightweight flywheel further sharpens throttle response and makes the engine feel considerably more eager. The Mandarin Orange wrap gives the car a real presence and makes it stand out from the crowd.

For anyone looking for a low-mileage Roadsport with genuine performance upgrades and a specification that has been developed by people who understand Caterhams, this is a particularly interesting car.