Skip advert
Advertisement

CNC Motorsport AWS to new-build Sierra Cosworth RS500 in Group A competition spec

Motorsport royalty to be rebuilt with new-build Ford Sierra Cosworth SR500 in Andy Rouse Engineering spec

British racing car and component manufacturer CNC Motorsport AWS has revealed plans to new-build three Sierra Cosworth RS500 Group A racers in Andy Rouse Engineering specification from the year 1990. The three units will be built in collaboration with Andy Rouse Engineering itself, and will be eligible for historic racing series like Silverstone Classic and Motor Racing Legends. 

Advertisement - Article continues below

Each of the three examples will be built with an original Ford Sierra Cosworth body shell, the first unit specifically using an completely unused ‘909 competition’ shell that has been in storage since its manufacture in the late 80s. All cars will come with HTP papers, a modern fuel cell and roll cage certificates that will make it race-ready after completion.

These elements will be built on with the fitment of new-build parts all built to original Andy Rouse Engineering specification, including the front suspension uprights, side exhaust system and specific roll cage, the latter also built to Motorsport UK regulations. 

The 1993cc Cosworth YB turbocharged four-cylinder engine will be a new build unit in original specification, with a Proflex Advanced fuel system producing upwards of 575bhp. It’ll be connected to a five-speed manual gearbox from Getrag, powering the rear wheels via a nine-inch viscous differential. 

Other elements like the interior gauges, braking system and a specific Andy Rouse Engineering build plate finish up the package, with each of the three cars to be delivered to customers in a blank white finish ready for their new liveries. Each car will cost from £185,000, and of course won’t be road legal.

Skip advert
Advertisement

Recommended

227mph in a Skoda Octavia vRS: reliving Richard Meaden's wild Bonneville record
Skoda 227
Features

227mph in a Skoda Octavia vRS: reliving Richard Meaden's wild Bonneville record

15 years since Dickie Meaden and Skoda smashed the production car class top speed record at the Bonneville Salt flats, we reminisce
19 Aug 2026
Your old Ford may last longer thanks to cut-price OEM parts
Ford Fiesta ST
News

Your old Ford may last longer thanks to cut-price OEM parts

Ford has reduced parts prices by up to 25 per cent for its older models, potentially extending their life, improving residuals and reducing insurance …
12 Jan 2026
Ferrari 550 Maranello Prodrive: behind the wheel of a V12 Le Mans icon
Ferrari 550 Maranello Prodrive
Reviews

Ferrari 550 Maranello Prodrive: behind the wheel of a V12 Le Mans icon

This sensational Ferrari 550 Maranello Prodrive competed at Le Mans no fewer than five times. Now it’s our turn to get behind the wheel
21 Dec 2025
Best fast Fords of all time – from the GT supercar to the Fiesta ST
Fast Fords
Best cars

Best fast Fords of all time – from the GT supercar to the Fiesta ST

Ford has produced some of our favourite driving machines over its extensive history, these are the best fast Fords from the ages
3 Nov 2025
Skip advert
Advertisement

Most Popular

Lotus Exige V6 (S3, 2011-2021) review – a mini supercar for Golf GTI money
Lotus Exige S V6
In-depth reviews

Lotus Exige V6 (S3, 2011-2021) review – a mini supercar for Golf GTI money

For the S3 generation the Lotus Exige got a lot brawnier, trading the four-cylinder engines it had hitherto utilised for a supercharged Toyota V6
21 Aug 2026
Cupra Leon VZ review – Spain’s Golf GTI is better than Germany’s
Cupra Leon
In-depth reviews

Cupra Leon VZ review – Spain’s Golf GTI is better than Germany’s

The choice of full-sized front-drive hot hatches now doesn’t include the Civic Type R. Can the Cupra Leon VZ take the top spot?
25 Aug 2026
The 2-litre Mazda MX-5 has officially been axed in the UK, for good this time
Mazda MX-5 front
News

The 2-litre Mazda MX-5 has officially been axed in the UK, for good this time

As emissions regulations close in, Mazda has announced the discontinuation of one of our favourite current sports cars on sale: the 2-litre MX-5
25 Aug 2026