I have a 68 plate Ateca Excellence 1.4 tsi DSG. I am looking to replace the 215/50 R18 tyres. Depending on which site I look at they give me either V or W speed rating, bearing in mind the spec gives a top speed for the Ateca of 128mph and V rating is 149mph and W rating is 168mph would it be ok to put on V rated tyres. Any advice would be appreciated, many thanks.