Newbie looking to by a used Q50/G37/Q70/M56

[DP Green]

Hello all,

I'm looking to spend under $20k & have preference for speed, sporty handling & quiet ride.

Trying to get a handle on maintenance costs buying a 2013-2015, under 100k miles.

I prefer lower insurance & don't mind slightly worn exterior, if my first 3 priorities are met. I guess that pushes me towards a G37 or M56.

ONE QUESTION to start: I'd like AWD for road trips into the mountains. But that REALLY limits my options in terms of what is available.

Can you tell me:
1) How good the Infinity AWD is?
2) If it would add significantly to maintenance costs?

Thank you in advance.