I think many designs probably look great on the drawing board...until they hit the wind tunnel...the they are revamped to suit some optimal coefficient of drag until...

...the final effort looks like every other model on the market.

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2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car