Watch a standard Jeep Wrangler take on America's scariest off-road trail!

The idea was simple. Take a stock Jeep Wrangler Rubicon to a little town in Utah called Moab, explain why it’s brilliant, indulge in some light off-roading and head home with our no claims bonus intact. Except we found ourselves scaling a trail called Cliffhanger, one of the most unforgiving tracks in the world where the drops are so long “you could read a book on the way down”. If you don’t like the sound of fingernails on a blackboard, the noise of Jeep meeting rock isn’t much better.

Also in episode four of TG2: Cars and Stripes, we meet the Ruffian Mustang and builder Chris Ashton, creator of hand-built machines that fuse the American dream with distinct Mad Max vibes, like the one you see here. But they're not all-show-and-no-go. A keen autocrosser, Chris wanted his Mustang to be capable against the clock. The result is a 7.0-litre beast making 625bhp and around 560ft lb of torque, but with the handling and balance to match all of that power. Naturally, Jethro had to have a go...