It will depend on how much undercoating you are wanting to rubberize.
Short answer, NO you do not NEED undercoating.
Undercoating is a waterproof coating applied to cars' undersides to prevent them from rusting. The parts under your car are also vulnerable to damage from the elements (especially in north climates), oil, tar, and items that fly up from the road.
No.
starting at $150
according to the info i read on the back of my can of undercoating, it only takes 10 minutes. I'd give it a 1/2 hr myself.
No, undercoating should last for years.
Maybe so you can see where you need to patch it up... maybe...
you can if you want to but i would not susgest it because then you will have problems under the car and no one will touch it
Absolutely, positively not. The manufacture dips your entire car in a electrophoretic bath about 5 or 6 times to coat every nook and cranny. It is then baked in a dust free sun room. All the protection your car will need it gets when it is built. All you are doing by adding undercoating is adding about 50 pounds of tar-based gunk to the underside of your car. That gunk will trap dirt and moisture. Don't fall for the undercoating myth.
All elements of TAPES system are critical
Yes. However, if you have surface rust, it should be removed before the undercoating is applied.
undercoating keep vehicle garaged when not in use move to Arizona, USA