Toyota: Find a Dealer
Toyota have the honour of being the first website that I've discovered to implement support for Street View in South Africa.
Toyota use Google Maps to allow customers to search for Toyota dealers and Toyota parts suppliers in South Africa. The maps include an option to get directions to a dealership from any location. The driving directions allow you to view the route before setting out entirely in Street View.
The Street View driving direction option is a fairly faithful reproduction of Thor Mitchell's Street View Driving Directions, which is available in the Google Maps API V2 Demo Gallery.