Bentley seat leather: inside story

What Car?'s Peter Lawton visits Bentley's factory in Crewe to see just how the manufacturer's team create some of the world most luxurious leather seats.

From being doused in artificial sweat to test its resilience in 'challenging' environments, to being sat on 25,000 times, we see how the leather is stitched, fitted and tested, before taking its place in one of the world's most prestigious cars the Bentley Mulsanne.