Ironically, it is the same Swedish motoring magazine, Teknikens Värld, that pointed out the flaws in the A-Class, that has made the new claim against the Grand Cherokee which tipped up onto two wheels during an emergency lane change manoeuvre, or the "moose test" so called in Sweden as it is replicating a sudden swerve to avoid an object such as another vehicle - or a moose.

However Chrysler Group has shouted foul over the magazine's test, claiming that the vehicle Teknikens Värld used was overloaded, that it couldn't replicate the situation during a similar second test, and that the manoeuvre isn't part of any recognised safety test criteria. However it does say that its examination of the situation is ongoing.

In a statement the carmaker says: "Chrysler Group engineers are investigating a Swedish magazine’s evaluation of the 2012 Grand Cherokee. During the evaluation, the publication was able to capture images of a Grand Cherokee on two wheels as it performed an extreme manoeuvre in an overloaded condition," the U.S. carmaker claiming the vehicle, which had a full complement of passengers and sandbags in the rear to replicate luggage, was overloaded. "Advised of this event by the magazine, Chrysler Group engineers made numerous attempts to reproduce the wheel-lift in a properly loaded vehicle," the statement continued, adding: "extensive testing produced no such result.

"A subsequent evaluation was conducted by the magazine July 8 in Sweden and witnessed by Chrysler Group engineers," the Chrysler Group statement continues. "Three vehicles performed 11 runs on a course prepared by the magazine. None reproduced the original event. The uncharacteristic result was obtained using a vehicle loaded beyond its weight specifications. The Grand Cherokee’s weight limitations are clearly stated on the vehicle and in the owner’s manual.

"Also," it adds, "the extreme manoeuvre performed by the magazine is not certified by any regulatory agency, nor is it used to establish any sanctioned safety ratings. Chrysler Group takes seriously any safety concerns and engineers are examining the event to better understand the magazine’s claims."