Is there a size listed in the owners manul or on the drivers door pillar. You need to identify what size/width rims you have as the 165's may cause in creased body role. Regards Peter

Certainly a facelift Corsa B 1.2 16v on standard steel wheels should be using 165/70 R13's (unless chaved-up) and it's very likely the same steel wheel will take a slightly narrower tyre. However, 145 does seem very narrow, especially on a GLS rather than on a poverty spec model - so as suggested check with a tyre supplier. I doubt Vauxhall made two types of 13" steel wheel for the 1.0 and 1.2 Corsa B with different wheel widths and wheel offset. I'm not sure I'd be too worried about 3mm tread all round going into summer unless the tyres are showing signs of age cracking. http://www.carbibles.com/tyre_bible.html What size tyre is on the spare and does it look like it's ever been used?

Edited by Victorbox on 16/05/2011 at 13:10