I'm a huge fan of Elon Musk, the world-changing, South African born pioneer of the consumer electric car and space technology company SpaceX, and was pleased to learn that both the Tesla website, and the SpaceX website are built on Drupal. Both are currently Drupal 7 sites with home pages that use beautiful images and video to provide high visual impact and engagement.
The Tesla site home page utilises video to engage the user while keeping the "Order Yours" and "Test Drive" calls to action front and centre. I notice that the e-commerce component of the site uses the Shopify platform.
To keep updated on what he's thinking and doing, follow Musk on Twitter.