Description Finished in desirable 'Moonstone Blue' Formed part of a private collection since 2022 Showing approx.

61,000 miles on the odometer Advisory free MOT until April 2027 HPI Clear In 1990, the Sierra Cosworth came with two major changes.

A big power boost to the engine and four-wheel drive.

It gave the Cosworth devastating pace.

Now, over three decades on, this Sierra Sapphire Cosworth remains as potent as ever.

First registered 25 March 1991 Engine number LU59687 Mechanicals The iron block from Ford’s single-overhead cam, the T88 Pinto that was used in the Escort RS2000, was the foundation of the Sierra’s new engine, called the YB.

Cosworth designed an aluminium head to suit the Pinto block with two belt-driven cams operating 16 valves.

Cosworth engineers added a Garret T3 turbocharger with intercooler.

The result, as we all know, was a phenomenal success.

In 1990 the biggest change to the Cosworth was made.

Ford altered up to 80 per cent of the engine parts, increas...