Jaws12

As I'm only driving my 2015 911 GTS on the weekends, I've decided to replace my daily driver, currently a BMW 650i GranCoupe x drive.

The BMW is just too soft and it feels huge, which limits the daily enjoyment.

I'm deciding between a 2015 Panamera 4S or a 2015 MB AMG C63S.

I know they are quite different but both are compelling. The Panamera is of the same genre as the BMW, but the handling and performance, while similar in numbers, just feels better and more accessible. The "sports car" type handling makes the Panamera shrink around you and its size is well masked. The comfort is supreme.
The AMG C63S IS a sports car. 510 hp and its crazy fast. Rear drive only, but quite daily drive comfortable. Great tech, great exhaust note, burmeister stereo, 0-60 in under 4 seconds.

Please give me your thoughts.

Thanks.

TTCarrera

Upgrade to the Panamera GTS.

Gus_Smedstad

Why isn't the 911 your daily driver? Do you need more space, a softer ride, does it project the wrong image, or is it something else? I ask because it bears on helping you decide. You said the BMW is too big and too soft, but both cars you're considering are bigger and softer than the 911.

Goonie

I'd go for a Turbo or E63. Maybe a couple years older to fit into a budget but those would be my pics.

EMC2

I would strongly suggest testing a Panamera GTS. I've had a Panamera 4S (V8 ) for 3 years and really loved it, but I do not like the feel of the new 4S Twin Turbo V6 in comparison. I also recently tested the M6 Gran Coupe, and the power in that car is really impressive, but it simply did not feel as engaging or agile as the Panamera GTS, which ended up being my choice.