You can go to many online sites and enter in your specific car information to get a listing of parts / prices. One example is http://www.autopartswarehouse.com/models/Pontiac~vibe~makemodel.html and another example is http://shop.advanceautoparts.com/webapp/wcs/stores/servlet/home___
You can purchase parts for a Pontiac car at your local NAPA or parts store. You can also purchase parts online at websites such as Auto Parts Warehouse or even eBay's automotive section.
You can get that from Sears' online parts directory.
You can find a directory of used auto parts all over the web. Usedpartscentral.com is a great site because it will allow you to search by state and city. If that is not helpful you can also go to automotix.net.
Yahoo directory is a great easy to use website that people can use to find and buy used auto parts. Yahoo directory is also a very well known website used by many.
You can buy used equipment for less than new equipment online. Here is a link for used equipment and parts: www.tractorhouse.com or check out Ebay You can also buy new parts online. Here is link for those: www.farmnetservices.com/directory/.../Farm-Equipment-Parts/
I think Year 1, makes parts for that car, so they probably would.
It depends on whether or not you want to purchase motorcycle parts online. If the answer is yes, check out www.motorcycle-superstore.com or www.bikebandit.com. If you prefer to purchase these parts in-person, check your local phone directory for stores located near you.
You can compare prices online at any of the big box parts store's websites.
There are multiple Firebird, T/A parts places available online that will carry your dash board.
What parts??? Body, engine, suspension???
One place to get parts for a 1970 Pontiac Grand Prix is at the website Stock Interiors.
One can find parts for a Pontiac convertible in a branch of an engineer. However, one can also find parts on the internet and especially on convertibletopguys.