'The Smallest Cog' - Featured on Richard Hammond's Workshop (Discovery+) - Sold in aid of Combe Martin Wildlife and Dinosaur Park's Amur Leopards project The Group A Lancia Delta Integrale could have been the marketing team’s worst nightmare: slower than its rallying predecessor, and based on a seven-year-old shopping car that was close to pensionable.

But the people behind its creation had been responsible for such icons as the Stratos, 037 and Delta S4, all amazing rallying machines and delectable road cars.

And so the roadgoing Delta Integrale matched its chunky, square-edged styling with a fistful of competition-bred brio, and did it all for a bargain price compared with its closest rival, the Audi quattro.

Between 1987 and 1992, the Integrale utterly dominated its branch of motor sport, winning 46 rallies and six constructors’ championships outright.

And to keep the rally car at the sharp end of the results table, the road car went through a number of iterations, each more pot...