If there was one certain way of getting a GM-related story or a controversial quote at a motor show, it was to doorstep Bob Lutz.

Lutz could invariably be found on the show stand just after some new car or other had been unveiled. Us hacks would cluster around, in thrall.

Whether it was his skepticism about man-made global warming, or a few choice indiscretions about future model plans, Lutz never disappointed.

He was, perhaps, unique in that during his 46 years in the car industry he held senior positions at Ford, Chrysler and GM as well as a spell at BMW.

Lutz had an instinct for bold products and was often found in thick of company turn-around. He was at Ford when the company took a chance on the Sierra. And he was at ailing Chrysler when they developed the LH-series of mid-size cars (nicknamed ‘Last Hope’) that helped turn the company around.