Re: 3 sets of tyres, 2 days and 1 Le mans –
Totally agree about the noise change. Fitted 18" ZZ5 fronts to my car recently - noise and grip both much better.
A6 2007 2.0 TDI SE Multitronic from new, 125,000 miles: Black, Xenons, Heated leather, AMI, 18" alloys, sports suspension, DVD Nav, Lumbar, parking sensors all round, MMI High, 6CD, folding rear seats.
Audi A2 2002 TDI owned since 2006: Azure Blue, OSS, Cruise, Symphony, Lumbar.