I have a pair of Continental ExtremeContact DWS06 tires on the rear of my 2013 C250 coupe. I like the tires, but they don't last. Since the tires on the car can't be properly rotated, Continental says they rate them at half normal life which is 25K miles. I've had them since January of 2019 and put 20K miles on them. I'm going to need another pair before winter. Can someone recommend a better all season tire or is this the best tire available? By the way, I live in upstate NY where we have cold winters. luckily last winter was not too bad, but who knows what is coming up for this year.