2. Porsche 928
When the marque decided to stop production of its 911, it needed a new offering for its loyal customer base. But Porsche was quick to cotton on that the 911 was too much of a success, and so the 928 has always been overshadowed by its more instantly-recognisable sister.
While the 928 has dated in design, mainly due to its pop-up lights, in the performance stakes it is very similar to the 911 albeit with a much lighter price tag (in the tens of thousands).