5 highest priced flops, super expensive cars that failed to deliver, Rob Sass nails it in his article on Hagerty newsletter

http://www.hagerty.com/classic-car-articles-resources/Features/News/All-Articles/2012/06/05/High-Priced-Flops-Five-hyper-expensive-cars-that-failed-to-deliver

The Vector w8
Aston Martin Lagonda
Bugatti EB110
Ferrari 348
Rolls Royce Camargue