You will no doubt struggle to find them. I just fitted the OE430 Bridgestones to my CS. FWIW, despite the generally favorable reviews on fchat for the Corsa, I had problems with my last set cracking and a tire problem caused a spin at the track. I've been through 4 sets of Corsas in 19K miles, so they're not long lived tires Also don't drive them in the cold, they have essentially no grip at all below 40 degrees F.
