Description From a deceased estate; few owners, the current for 22 years; highly original with a wonderfully mellowed interior; lots to love about this one The ‘Heavy Twelve’ was a remarkably robust model that served as the backbone of the Austin Motor Company’s success throughout the 1920s and 1930s.

Designated the 12/4 to reflect the 12.8 fiscal horsepower rating and four-cylinder engine, the original 1,661cc side-valve engine was enlarged to 1,861cc in 1928.

This engine was not built for speed but for durability, giving a cruising speed of 40–45 mph and a famously long lifespan – so much so that the chassis and engine were the mainstay of the London taxi trade for decades.

Introduced around 1927, the Windsor was a four-door six-light saloon that offered snug yet spacious all-weather comfort, reflecting the growing demand for closed cars in the late 1920s.

Unlike the earlier, lighter fabric-bodied cars, the Windsor was constructed using steel or aluminium panels over a wooden fra...