I have an Opel Corsa myself (as we call them here in this part of Europe) and am very happy with it. Not modified, but good anyway. You have an amazingly 'creative' niche. Unfortunately the logo 'tells' me nothing and the theme is still the default one more or less, not to mention the colors in the logo/theme don't match. It's a pity since a car niche can be a really good opportunity to put some very nice and memorable design on the site.