Having just reviewed your other blog I had very low expectations about this one but I'm really pleased to see that you've targeted your local market instead of trying to tackle English. My main feedback would be that the categories don't appear to be ordered with any care. I'd have expected all the cars to be together and for there to be some sort of grouping. Your last post was on 12th October - you need to keep adding fresh content - or hide the post date.
I don't have your business plan to refer to so lets just go by my first impression. Somehow I've landed on your site. The blog name is an odd misspelling and the logo looks like it's come from a '90s clip art collection. Then I see the big chitika ad at the top and the list of categories in green and the order seems out of whack. If I spent enough time on crap sites I'd have realised it was advertising, I didn't so I just thought it looked sloppy and disjointed. On the right I see some posts that all seem to be promoting software. The dates are visible and I can see the blog hasn't been updated for a couple of months. Do I stay on the page or do I click "back" to pick a different site from the SERPs? I'd be gone. Now that may not matter to you as I may not be your target market and you may not be trying to get return visitors but I wouldn't be wanting to put my name to it. FWIW even though you are using blogging software you don't have to stick to all the conventions of a blog. Take away the dates and they become pages that just happen to be shown in date order.
How is that relevant to your review request for logicielpc.blogspot.com? You need to start a new thread if you would like that reviewed too.