Yeah...wifey's car (bmw 535) has a similar engine, twin turbo 6, with 306 hp and 295 torque...it's a bigger car, but still gets good performance. I've gotten really good long term mileage out of both NA V6 engines I've owned...the turbo/supercharger engines, I'm not so sure about...my older age tells me it's just one more thing to falter later on...
I'm longing a 2 door coupe myself for my next car...I've test driven the bmw 435i, Q60, MB E class, Audi S5 and the Caddy ATS V...as pure driving cars...I actually like the Caddy the best, it's a beast of a car and handles better than all of them...cost of ownership, the Q60 jumps up considerably, but the Audi S5 is the one I keep coming back to...it has a version of a supercharged V6...but the older ones '12 and prior have a NA V8 in it....I'm toying with buying a V8 version, but in no hurry. My G37 is paid off so I kinda like being car note free for a while longer.