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: 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. See, being a keen autocrosser, Chris wanted his Mustang to be capable against the clock. What's resulted is this 7.0-litre beast, now 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...

WATCH MORE TOP GEAR:

00:00 Intro

02:17 Jeep Wrangler Rubicon

05:57 Moab challenges

12:05 The Cliffhanger

14:23 Conclusion

16:19 Studio

17:22 Ruffian Mustang

20:51 How it drives

27:21 Final Thoughts

29:01 Outro

MORE ABOUT TOP GEAR:

Welcome to the official home of Top Gear on YouTube. Here you'll find all the best clips from your favourite episodes, whether that’s Ken Block drifting London in the Hoonicorn, Chris Harris in the latest Porsche 911 GT3 or classic Top Gear clips from Clarkson, Hammond and May. You'll also find the latest performance car reviews from the TopGear.com crew, our brand new series American Tuned with Rob Dahm and the fastest power laps from our in house performance benchmark: The Stig.

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