D Griff
Go Kart Champion
All M3's have LSD.
I'd vote E90 M3 or this:
http://www.autotrader.com/cars-for-...[POR[PANAMERA[]][]]&listingId=365701795&Log=0
Both 400 hp RWD V8's with 7-speed DCT's and maximum badge whore appeal.
The other unexplored answer is Cadillac CTS V-sport with their new 8-speed, you might be able to get one for $50k.
That's what I thought, they must've been talking about the 335 and I misunderstood.
That Panamera is sweet, contrary to everyone, I love the looks of those.