The A7 is a good looking vehicle, but looks aren't a substitute for sport performance. The Panamera has more generous engine options maxing out at 520 HP twin-turbo V8. The A7 is a conventional luxury sedan while the Panamera is quite the inverse - a sports car at heart that provides all the amenities of a luxury sedan.

The Panamera has something you just won't find a BMW 6 Series: a roomy interior that gives you the versatility of split folding rear seats. The Panamera also offers a lower starting price than the 6 Series and has a lighter overall curb weight which makes it faster and more agile.

It's all about the dimensions. Specifically, the Panamera sits lower and wider than the Lexus LS meaning it was built to take tight curves and have better handling overall. That's something most will appreciate about the Panamera, especially since you'll get more with a slightly lower price tag than the Lexus LS.

The Panamera boasts more MPGs than the CLS-Class, thanks to it's sport-designed engine. The CLS is a clear competitor, rushing to 60 mph in 3.7 seconds - the same time as the Panamera. To see the real difference, you'll have to get behind the wheel of a Panamera today - because Mercedes simply does not offer the performance of a Porsche.