Each quattro man spent around 2 hours working on each car, fitting an average of around 100 components and sub assemblies.

Each UR Quattro spent a week being assembled before being put through a full evaluation road test of some 40 miles. A team of test drivers, led by Issay Popow, assessed every aspect of handling, steering, braking, performance and build quality. Restricted to a mere 4000rpm meant that they could actually reach 115mph. The test run included 2 scheduled stops to check fluid levels and check for leaks. Amazingly, they claim to have only damaged one Quattro out of the circa 11,000 cars built!

When the Quattros returned to the factory they were subjected to 2 further tests, the rattle track and the water bath. The rattle track was a ridged surface that submitted the suspension and bodyshell to severe loads, and the water bath took 10 minutes when 3500 litres of water were dumped on the car to expose any leaks and to check the ventilation system.

The UK was responsible for purchasing 30% of Quattro production, and it is said that UK demand was the only reason the Quattro survived into the 1990's