You might want to jack the car up and leave it on jack stands. This will prevent flat spots on the tires. Make sure you treat all external rubber with a conditioner and maybe cover it, as the Sun will dry it out and make it crack. A good car cover will prevent the interior from fading, if the car is in direct Sunlight. You should also add some Stabil to your gasoline. It will go bad from sitting that long. You can hook up a battery maintener to prevent the battery from draining.
[This message has been edited by avengador1 (edited 07-06-2009).]