I just looked the Continental Extreme Contact Sport up on Tire Rack and it says not available for the size of the Roadster. BTW, I had kind of forgot about the tires--you know, that part of the car that contacts the road. I just had my car in to the Service Center to have the malfunctioning headlight upgrade fixed (done!) and was told I needed new tires so I told them I would check when the car arrived home. I got out a penny (that old trick I learned 50 years ago) where you put a penny in the groove the tread to see if one could see space between the top of Lincoln's hair and the tire and if so one needed new tires. No groove at all; no problem! The tires were completely bald! Sure lucky I didn't blow a tire! Anyhow, new tires on order to put on this week. I lucked out and will start checking my tires regularly again! Once again, I got about 6000 miles on the rear tires. I get about 18,000 miles on the front tires. I wonder if that rule in the Owner's Manual where it says the when a stoplight turns from red to green you are supposed to then stomp the throttle to the floor and hold it has anything to do with short rear tire life?