Tyres for Mercedes CLS

I have a 2008 Mercedes CLS which has 245/40/18 tyres. I fitted Michelin Primacy 3's to my previous E-Class which lasted well and were good on fuel but they don't make them for this tyre size. Goodyear Efficient Grip Performance look good but have a W speed rating and my handbook says the tyres must be Y rated. Can I fit them anyway - W rated tyres are up to 168 mph and the car's top speed is 153mph according to the handbook? If not, what do you suggest for durability and rolling resistance?

Asked on 5 December 2014 by Ian

Answered by Honest John
I'm on Goodyear Efficient Grips at the moment and though they are very sensitive to over pressuring (lose grip entirely at 8PSI over), they are generally very good. I can't tell you if your insurer will approve fitting them to your CLS, but your insurer can.
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