Just bought 2 new avon zz3 for my s3 2001 quatro last week and had them fitted covered only 50 miles or so. I now have the cash to have another 2 fitted but local dealer only has zv5 avon in stock. Is it possible to fit these as car is 4 wheel drive? Its just i have alwys tried to replace the 4 at same time and of the same tread/make have been a bit short of cash of late. Is there a combination of maybe zz3 on front and zv5 on back that would wurk. They are both made by avon but different tread.