This site represents the brand really well. It's visually engaging, interactive and has tons of useful info and interesting features. As it should. This is after all BMW...
http://www.bmwusa.com/default.aspx
I liked this site because it had tons of features to explore, yet was easy to navigate. It uses flash, javascript, animation, databases in a stylish, user friendly way. You can explore all the vehicles inside out and defintely can get a feel for the luxury they offer.
Here is their cool intro to the hybrid 7:
http://www.bmw.com/com/en/newvehicles/7series/sedan_active_hybrid/2009/experience/phase_1/experience.html
I really liked the build your own feature, I whish I knew how to create something like this:
http://www.bmwusa.com/Standard/Content/BYO/ByoHome.aspx?enc=42tTtZT4K2UT4Lkc6iGPBQu+zHzSDyMMO9wWuhGDWFtyM0ZVsU/h6CJa84XbwBJeDBdp6geiSBzCqF7xS5SW/xKfXoiyupTiIP9nQ4P4lBHvIwE8EcZxmBU9uHtrCEZChlAQxToVh3xKyDPGX7CKK/6NJvG/GMq484ndytjiUN9eJ2vN2Tm1lOOK1SgYDL3o
The site has financial calculators, drop downs menus, international sites in diferrent languages, a dealer locator, shopping functionality, just to mention a few features, so I think it is an excellent showcase of web design skills. I am not quite at this level yet...