powerful sporty luxury on a dime

I would recommend you taking a look at Hyundai Genesis (sedan). 2015 CPO models for the V6 version are going for ~$30,000, and you can have a V8 (420hp) with 30,000 miles for roughly $28,000. I have owned my V6 version for 2 years now (18,000 miles), and I love it. It's an amazing car for an amazing price. No regrets so far!

The problem with Genesis/G80/G90 is it as far from as Lexus is.

The Haldex4 AWD system in the 410 horsepower XTS Vsport is torque vectoring and is included on the Vsport model.