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Lot 12

Lot Ended

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  • Lot Ended

    Hammer Price (inc. buyers premium) £16,800

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awaiting images

1968 MGC Downton 45 Roadster

Auction Ends: Wed 17th Sept '25 @ 11:11 am

  • Registration Number

    TLK792G

  • Engine Size

    2912cc

  • Engine Number

    29GVH2372

  • Chassis Number

    GCN12959

  • Gearbox

    Manual

  • VAT Status

    No VAT

  • Buyers Premium (excl. VAT)

    12%, Minimum £150

  • Documents

    V5C, 23 old MOT's, Heritage Certificate, Photographs, Workshop Manual, Invoices.

  • Tax and MOT status

    Tax and MOT exempt

Description

Desirable Downton Roadster with triple carbs; originally supplied to Univeral Motors, London; engine and gearbox rebuilt in 2015, driven 10,000 miles since; overdrive fitted

Downton Engineering may not have been the first company to make a living out of ‘hotting up’ production cars, but they were certainly one of the best known and one of the most successful.

In the 1960s they had a hand in the evolution of the giant-killing Mini Cooper, four successive Monte Carlo Rally winners and the production of thousands of BMC-engined competition cars. Daniel Richmond, BMC's Technical Consultant appointed by Alec Issigonis was responsible for all modified BMC engines, so Downton’s upgrades were approved and their warranties remained valid.

While the success of the A-series engine cars and the Mini in particular is well-known, Downton’s involvement with the six-cylinder BMC engine – the C-series – is often overlooked. Downton offered a range of improvements for the big six including improved inlet and exhaust manifolds, three carburettors, gas-flowed cylinder head, and improved exhaust system. In Stage III or ‘Type 45’ form, the MGC was good for 174bhp (up from 145bhp), 0-60mph in 7.5 seconds (10 secs standard form) with a top speed of ‘over 130mph’ - up from 118mph in factory tune.

It is not known how many cars went through the full Type 45 conversion (there were cheaper options) but the cost may have put many people off. The full Monty (so to speak) cost £228.11/- (£228.55) at a time when the new car cost £1,412.2/4d (£1,412.12). The average weekly wage back then was about £30 and a Mini still cost under £600 new. This 1968 MGC was originally supplied by University Motors Ltd, London and recorded as being exported in the same year, we understand for someone who was in the British Forces working overseas.

Owned by our vendor since 2012, there have only been three other owners known since coming back to the UK, the last having it for almost thirty years after purchasing it in 1983.

As you can see in the photographs, the rare triple carb 45 treatment appears under the bonnet making this car potentially a lot of fun. In fact, our vendor has driven it at least 10,000 miles since 2015, including trips to France. Fitted with overdrive too, it should have no problem keeping up with modern traffic.

Pre-2015, he had the engine and gearbox rebuilt (still correctly stamped on the head), fitted new wire wheels and tyres along with a new hood cover and tonneau. Prior tot that, there is evidence of new wings, door skins, renewed interior trim and paintwork.

This look an excellent opportunity to acquire one of the most popular and rare MG variants and driven to the auction by our vendor, he reckons it should prove no immediate problem being driven away from the auction.

Contact - toby.service@brightwells.com

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