There are several cars that have self parking on them.
Most have been in different countries for a few years.
Here are a couple of links of a Toyota Prius.
I own this car, but it doesn't have the parking feature.
http://www.youtube.com/watch?v=ncAddqCRevA
http://www.youtube.com/watch?v=IpEMXnteMAM
Here is the BMW self park...
http://www.youtube.com/watch?v=h8oBB2WjKOA
And here is the Lexus. Just about the same as Toyota (same company)..
http://www.youtube.com/watch?v=IkEu-PdVlK0