The colors and such are great. Pretty good job with your ad placement. You might want to consider possibly placing an ad between the rows of picture icons of the cars to maybe help boost your earnings in the future. People are going to be clicking on the icons to bring up pages, placing an ad about half way through the rows of cars might lead to a few more clicks.
I would have to agree that you've placed the ads on the page well and blended the colors and such very well. The only thing I might venture to say is that considering that Google Adsense only allows 3 units per page, you might want to get more use out of the ad unit which is currently at the bottom of your page. Clicked through to one of the video pages and the ad is so low in comparison to the content down its seems very unlikely that it will get many impressions. You could consider what LasVegan said and maybe do something like that with that unit.
nice placement on your website. i dont think more than 3 ads will be good here. best of luck.you can put socialbookmarking plugins in to your website to get more visitors.
you need big ad size near the top and content area. Just look at your ad placement, it's easy to tell you haven't followed those 2 simple rules.