I had Riken Raptors put on my 530 BMW 4 years/50k miles ago and they are just now down to the wear marks.
These tires have impressed me. They handle fine, road noise is not an issue and they perform great in the rain.....when it rains. I'm putting a set on my wife's E320 Wagon because the Yokohama Envigor's only lasted 20k on the rear. Just priced the Raptors online for only $75 225/55-16 ....for that price I can buy two sets.