Ford is making our lives much easier by coming up with self parking technology so that we can sit back; let our car parallel park itself without any damages/scratches. Ford is planning to introduce this type of vehicles in 2010.
Self-parking technology uses ultrasonic sensors on front and back side of the vehicle which is combined with electric power steering. These sensors show warning indicator light if it detects something or if traffic is approaching. At the same time electric power steering can improve the fuel economy and carbon emission.

So we can expect polution free vehicle in upcoming days :)...