I would look at the Chrysler 300C or Charger R/T (being a Mopar fan...). But even if I weren't a Mopar guy, they're still exactly what you're looking for mechanically (great handling, great power, solidly built, bulletproof drivetrains, available AWD). The downside is that the interiors were pretty spartan up until 2011. A HUGE upside is that the 2011 upgrades substantially de-valued the earlier years and they're good deals right now.
The CTS is also a superb machine.
The CTS is also a superb machine.