Tom Waits is a truly great American performer, but he's the physical embodiment of a nightmare. Similarly, not all great cars are endowed with great aesthetics. What's the most unattractive great car?

The Autech Stelvio took the venerable late 80s Nissan RWD architecture and added a stiffened chassis and massive 320 HP DOHC V6. Top that off with Zagato styling and you should have a winner. Not so much. There are few cars with such promising numbers and truly bizarre and unbecoming proportions. From every angle, the unnecessary lines and chunky mirrors make the vague and uninteresting profile of the M30 seem delicate and refreshing. It could have been the best driving vehicle in the world and no one would ever know because no one would want to be seen driving it.

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