You can also find a new preview with 5 new screenshots at IGN's screenshots section here.
Update: HD version of the video is now available at Gametrailers.However, unlike last year, your AutoSculpting now also affects your performance. Your car's downforce and drag will increase and decrease depending on what you do, allowing you to further enhance and tweak your overall performance. But it's not always a win-win situation - leveling out your spoiler may decrease drag and thereby give you a few extra MPH of top speed, but it will also lower your downforce and lessen your overall handling abilities. Again, the name of the game here is personalization, and now AutoSculpt allows you to create the style of racer that you want to drive.