Five 'undesirable' collector cars that have skyrocketed in value

Edit Fox News 09 May 2014
With a little development help early on from Lamborghini and some inspiration from an earlier Paul Braq-designed concept car, BMW produced a credible supercar and the first officially badged M-car that spawned a long line of special Motorsports BMWs.  Back in the flamboyant 1970s, though, the car was deemed to be too low-key inside and ......
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