I have a 2008 550 with the sport pkg that is eating up tires like nobodys business. I have had the alignment done twice and it all checks out but the inside of the rears especially are just gonzo. Can anyone suggest tires that have worked for them and worn better ? I know that the camber is the way it is on these and expect tire wear but this is crazy. I have to say that I am running spacers and tire sizes in the rear are 275/35/19 and fronts are 245/35/19. Thanks.