Deejay, It changed the drive and ride quality of my plus 4 by an unbelievable amount. Yes, the tyres I removed were 10 years old and original fitment so wouldn't be at their best even though the car had only covered 7000 mls but nonetheless it was like having new suspension fitted. One down side is you need all five if you have a spare but the good news is you are in the VW polo tyre size and there's a huge choice and deals freely available, Think I paid about £350 fitted for premium tyres.