On this week’s WhichCar Weekly episode, WhichCar senior journalist Daniel Gardner welcomes Mark Allen for a peek behind Jeep's global design centre doors in Detroit. With more than a quarter of a century with FCA, Chrysler and Jeep in his pencil, the head of design at Jeep offers fascinating insight into the way seven-slot grille models have evolved. The two petrolheads delve into decades of experience and find out Mark’s proudest moments, where Jeep design will go from here and the things he’d go back and have another crack at. And the master designer reveals the biggest challenges when it comes to creating the next generation of one of the world’s most celebrated and recognisable models. Oh, and Dan couldn’t resist dropping in a question about that crash too.