Tire Rack is a good source of information. My advice is to be realistic about how you drive the car and what is important in a tire. There are several good tires for the car.
2012 BMW 550 M-Sport
2012 Acura TL SH-AWD---Wife's car
2013 BMW 1600 GT---2011 Kawasaki Ninja 1000---2012 Ducati Panigale