A duo of Aston Martins and a Rolls-Royce 'Dreadnought' made up an all-British top three, all surpassing their top estimates to lead the Bonhams Beaulieu Sale this weekend, which was 95% sold.

The top lot of the day was a 1955 Aston Martin DB2/4 3.0-litre Drophead Coupé, one of only 46 dropheads produced for export, delivered new to California. Offered at Beaulieu as a restoration project, the Aston Martin achieved £172,500, twice its pre-sale estimate.

Its stable-mate, a 1955 DB Mark III Sports Saloon with Tickford coachwork, also delivered new to the USA, also exceeded its top estimate, realising £132,250, while the one-off 1931 Rolls-Royce 20/25 HP 'Dreadnought Special', sporting Bentley Blower-style aluminium bodywork, raced past its top estimate, selling for £155,250.

British-built lots dominated the sale's top ten, including a charming 1914 Ford Model T Motor Caravan, the oldest known motorhome in the world, commissioned for the Bentall family, founders of the eponymous British department store. Interest from the saleroom and the internet raised the final sale price to £63,250, more than twice its pre-sale estimate.

Further highlights from the sale included a duo of pre-war Lagondas, a 1930 3-Litre Tourer and a 1933 16/80 T5 Tourer sold for £101,200 and £63,250 respectively.

The Beaulieu Sale was staged at the National Motor Museum as part of its International Autojumble weekend, where the saleroom observed a one-minute silence ahead of the auction in tribute to Her Late Majesty, Queen Elizabeth II.

Alongside collector cars and projects, more than 400 lots of automobilia were offered. The most valuable collectible was an Austin Pathfinder, circa 1950 and requiring restoration, which sold for £3,825. Another notable result was realised by a Dursley Pedersen gentleman's bicycle which achieved £3,188, five times its estimate.

The Bonhams Collector Cars UK team now heads to West Sussex for the Goodwood Revival Sale on Saturday 17 September, which features a host of important period racing cars, from the very first car to bear the McLaren Kiwi badge – Bruce McLaren's 1964 Cooper-Zerex-Oldsmobile 'Jolly Green Giant' and Le Mans and Mille Miglia campaigner and winner of the debut Goodwood 9-Hour Endurance race, a 1952 Aston Martin DB3 Works Team Sports-Racing Two-Seater.

For further information or to register to bid, contact: [email protected].