I don't have an S60, but I just put T1-S on my Miata and I'm pretty impressed. Very nice grip.<P>In the US the Bridgestone S-03's are cheaper than the T1-S and they've received rave reviews, but here in Canada the S-03's are really expensive.<P>Come to think of it, your driving style will dictate which tires are appropriate.<P>One suggestion I have is to go to <A HREF="http://www.miata.net" TARGET=_blank>www.miata.net</A> and look at the wheel and tire forum, you'll find a ton of recommendations that suit many different types of driving styles.<P>Just keep in mind that prices vary by region.<P>In BC, I also recommend <A HREF="http://www.tiretrends.com" TARGET=_blank>www.tiretrends.com</A> as that's where I bought my Toyo's.<P>I have no affiliation, yada yada yada ......