Well now Jeep has thrown down the gauntlet, lending the duo a Jeep Compass and Jeep Patriot to complete a fuel efficiency challenge and set new standards for fuel economy in an SUV.
Both were standard production vehicles equipped with the 2.0-litre turbo-diesel engines, carrying two people and their luggage.
The Jeep Compass and Jeep Patriot drove from London to Berlin on a single tank of fuel - then kept going.
“We drove on normal roads at realistic speeds with two people and their luggage on board and the traffic and weather conditions weren’t favourable at all – cold with many traffic jams,” he said. “We used simple fuel economy driving techniques that any driver could replicate.”
In total the marathon 21-hour drive covered 1,124kms and six countries on a single tank, returning a fuel consumption figure of 4.25L/100km was the Jeep Compass driven by Helen Taylor and her passenger.
Husband John managed to better this figure, with a final consumption figure of just 4.18L/100km in his Jeep Patriot.