Background
King Charles drove his MGC GT for more than 30 years before passing it along the succession line to Prince William. Compared with its four-cylinder sister - the MGB, the C is a rare beast. Back in the day that may have been bad for BMC, but it’s fantastic news for classic car collectors today.
The MGC’s story starts with rival marque Austin Healey, and their universally loved 3000. Donald Healey was looking to build a successor to the car, and with both eyes tightly focussed on the lucrative American market, he wanted to take the car up market. The 3000 used a BMC straight six 3-litre engine, and Donald Healey intended to improve upon this by using a Rolls Royce 4-litre six to upgrade the car.
This worked for BMC because they’d committed to buying significant quantities of that 4-litre Rolls-Royce engine for their Vanden Plas Princess 4-Litre R luxury saloon, the sales of which had been disappointing, so the firm was looking for a vehicle to put the surplus engines into. The luxury Austin-Healey 4000 was created to be that vehicle.
Three prototype Austin Healey 4000s were built with a widened chassis to accept the new power plant, before newly announced American safety legislation made it clear the old 3000’s construction, with a separate chassis, wasn’t going to get US type approval, and the project was shelved. However, the MGB had a much more modern monocoque shell, so attention turned to Abingdon for a solution.
The 4-litre Rolls Royce engine was too big for the MG, so BMC decided on a 3-litre six instead. Rather than using the existing Austin Healey 3000 engine, the company chose a six-pot designed by its Australian division.
However, the 2.4-litre engine needed significant redevelopment before it would produce enough reliable power to be a serious upgrade for the MGB, and the resultant 2.9-litre engine required major surgery to the MGB’s shell to make it fit.
Having gone round in circles with their design process, BMC then managed to mess up the car’s press debut by presenting it to motoring journalists with only 24psi in the front tyres, thus giving the firm impression of a car that understeered badly compared to the B. All this, plus internal BMC pressure from the Triumph division (who didn’t want another six cylinder sports car to threaten sales of the TR6) meant that that the C was axed after just two years, with only 9000 being made.








