Sometimes it is better to find a dealer for the car you want, or you can do a Google search for cars - Locally or nationwide. Collectable cars are even more difficult to hunt down, depending on whether you want one already restored or not.
Make sure you factor mileage, condition, vehicle history, and any disclosed issues with the car before you make that buy decision. Have your mechanic or a "go-to" friend you can talk to about the car you are looking at. This can validate your thinking and get suggestions on the best options for you, or help you realize which car is best, based on your needs.
If the car is not in your local area, make sure you factor the cost of shipping, or flying to the car's location and driving it home on a "shakedown" ride. Some companies, like Carmax, will bring the car you want to their local dealer for you to test drive before you buy. They also offer warranties.
Buying a new car can be exciting, as it is one of the larger purchases (in dollars) by most consumers, next to a new home. I hope you will be careful and make good choices!
The Last Word: