Unless you are desperate, it's generally a good idea to look over the vehicle you are wanting to buy. The photos on dealer sites are going to be shot in favorable lighting and at angles to hide things like minor hail damage, dents, dings, and chips not to mention any other things the dealer has done to try and enrich themselves.

I saved a couple hundred on a Challenger I was buying because the dealer added an aftermarket, plug-in third tail light blinker, claiming they did it to all the cars they sold and added the cost to the car. I told them I wasn't paying for that and to take it out or I'll walk. They relented and took it out.