Background
Finances saw British Leyland put the kibosh on the production of a V8-engined MGB, but the superb results of external tuners’ fabrications – including Ken Costello’s – finally forced its hand in 1973.
In came the Buick-sourced big lump, which was good for 137bhp and a big dollop more of torque. In low compression form it provided the closed-top ‘B with an additional 19mph top end.
Crucially though, it was little heavier than the four-pot unit that it replaced. That meant that unlike the MGC, the car’s nimble, sure-footed prowess remained firmly in place.
The vehicle we have here is quite an amazing thing; a Pre-Production MGB GT V8 (the twelfth produced) that was registered on February 2, 1973 – seven months before the model was available for general sale.
Post press-launch, it was painted in British Leyland Police White then supplied to the service for evaluation. Fitted with a Ferrie Plastics triangular roof box (with rotating blue beacon), two-tone air horns, police radio and other equipment it then spent time in the Sussex, Staffordshire, Thames Valley and West Mercia forces.
In its August 17 1973 edition, Police Review – the weekly news magazine of the British Police – featured photos of this very car and stated ‘it is so perfect for police work that it could have been designed specifically for the job’. Other officers offered differing opinions as to its offerings and they ranged from ‘it could have been lethal in inexperienced hands’ to ‘The ‘B V8 went exceptionally well whilst the handling did not seem to be compromised.’
In the end just three MGB GT V8s were ordered by the service, with all of them being run by the Thames Valley Constabulary as unmarked ‘Q’ cars.
For a full history of the car visit: www.mgabingdon.org.uk/1973-mgb-v8-gt-ex-police-demonstrator/







