hfzeus 
2015 Nissan GT-R Coupe Premium 2dr Coupe AWD (3.8L 6cyl Turbo 6AM)
What can I say, but Wow!
 This is by a wide margin the best car I have ever had (or even been in).  As an engineer, I am amazed at this car and what it can do.
First, the downsides (which are far surpassed by it's positive qualities.  It does not like to go slow (neither do I).  At speeds under 30 or so, the transmission makes strange noises and the steering is a little rough.  The suspension, even in comfort mode, would not allow you to to surgery in the back seat.  And if you ever can temporarily give up driving this car, you better watch out for curbs.  The ground clearance would make a mouse do the limbo.
But that is not what this car was engineered for.  It is an absolute thrill to drive.