Although AC's reputation was established by John Weller's famous overhead-camshaft six, its early offerings relied on proprietary four-cylinder engines: that offered here being one such.

AC's Weller-designed six entered production in 1922, helping to secured the marque's place in motoring history when in 1926 a 2.0-litre model driven by Victor Bruce and W J Burnell became the first British car to win the Monte Carlo Rally.

Indeed, the company was then engaged in an active competitions programme under the stewardship of that formidable motoring personality, S F Edge and the policy had already born fruit the previous year when an AC six broke the 24-hour world record for its class with a speed of 82mph.

The six-cylinder AC chassis followed the lines of its four-cylinder contemporary, featuring quarter-elliptic springing front and rear, a three-speed gearbox in unit with the rear axle and worm final drive.

Front wheel brakes were optional at first, standard issue from 1927.

Although ...