If the M5 feels like too safe a choice for an elite sport sedan, the 2014 BMW M6 Gran Coupe could be just what the doctor ordered. This sleeker four-door is outrageously fast and fabulously luxurious, and it's a delight to drive on most roads.
- Extremely powerful engine
- Responsive automated manual transmission
- Wide range of comfort and performance settings.
- Feels big and heavy around tight turns
- Modest rear-seat headroom and legroom
- Costs significantly more than the M5.