I have had Sportrac2 on the 100 quattro for 14 months, and I have done approx 22000 miles on them. They grip well, in the dry and wet, and are quiet too. Still 3mm tread all round too.
Auto Express tyre test (objective rather than subjective) rates them highly.
If you are in South Wales, ring Venture Tyres in Bristol on 0117 9776447.
I paid £56.40 for 205/60R15 91V fully fitted inc valve, balancing VAT and disposal in Jan 08. Shouldn't have changed much,
I am going for the Quatrac this time round, as we (the brits) fit summer tyres and use them all year. The quatrac is an all season, which is snow rated, and is suitable for summer use too.
Below about 8C, the summer tyres don't give as much grip.
I highly rate Vredesteins, I have the HiTrac on the 80CL (185/60R14) and ComTrac on the VW T4 Caravelle.
Check out Auto Express tyre tests
http://www.autoexpress.co.uk/product...tyre_test.html
Don't forget about £10 a wheel for fitting and balancing, valves etc.........