i'm currently running on a set of 205/55/16 pirelli p6000's on a 1999 A3 1.8t sport (fwd) and the right rear seems to lose pressure rather quicker than the other suggesting possibly a slow puncture of some sort. i inflated all 4 tyres to 34psi, did about 250miles in 2 weeks including some motorway driving and country lane fun, i check them again at the petrol station (it has a digital readout for the tyre pressure) the other 3 are in the region of 30-32psi and the right-rear is down to 24psi! would it be better to: - take it to a garage and have them look at the right-rear tyre, sounds like a slow puncture and hope they can repair it - replace the front 2 with goodyear f1's and move the front 2 tyres to the rear and use the left-rear as a spare (i think i have a space saver atm) and ditch the right rear. taking it to a garage and if they can fix it, would be cheaper than getting 2 new 16" f1's (£160 fitted), i hope. however im still using 16" alloys and eventually i would want to upgrade to a set of 17" s3 alloys with f1's, which would mean getting a new set at a cost of around £400 on top of the cost of the s3 alloys. problem is i cant afford to pony up the cash to get the s3 alloys+f1s as its just too much for me to afford at the moment. also it pushes up my insurance a little for having non standard alloys (im with bell). i cant really wait and save up because its a bit dangerous driving around like this. all of the tyres have a good 4-5mm of tread left so im loath to replace them all whilst they're still "road legal." im going to ask at the garage just down the road from me tomorrow, if he can check/fix the right rear for a slow puncture, but if i went for the f1's on the front, would that affect handling in any way bearing in mind i would have slightly worn p6000's on the rears?