A 1929 Bentley 4½-litre barn find sold for £695,000 ($1m) at Bonhams' Beaulieu auction on September 5.

It was originally expected to sell for around £30,000 ($46,164), resulting in an increase of 2,216%.

The 1929 Bentley had been in the family of its original owner since 1935

The lot had remained in the family of its first owner since 1935 and has only recently been rediscovered.

It was used primarily during family holidays from the 1930s onwards and displays its original Caravan Club badge.

Bonhams' motoring specialist, Rob Hubbard, explained: "The vendor only recently found the car gathering dust in his grandfather's garage, and expected it to be valued at a fraction of the amount we've achieved at today's auction."

"It was an incredible discovery; the chassis, engine, axle, gearbox, steering box numbers are all present and correct, the interior is completely original in wonderful green leather. For a car that's over 80 years old, it's truly astounding."

Other lots included a 1969 Aston Martin DB6 Mk 1 Vantage project that sold for £163,900 ($252,068).

The lot had been part of a single-owner collection for 40 years and was offered for restoration.

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