Here's a guy who's been working with Used Car Lots since 1996. 15 yrs.
http://www.NWAutoPage.com
He visits 12 dealers a week...same time every week....4 dealers a day...Mon, Tues, Wed....takes photos of vehicles they got in....updates their database and website.
He charges a flat fee per week and x$ for each car over a certain number. I'm sorry, I've lost the info on what he charges. The reason I know this because he wanted me to handle dealers in Southern Oregon. I just couldn't tie myself down to visiting car dealers every week.
There is also another guy who visits car dealers every week and prints out the "Info Sheet" that goes on the "Left Rear Side Window"....giving price and specs on each vehicle. He gets the data from the dealer computer and prints out the sheets on his "portable printer" and sticks them on the vehicles.
He gets $12 per vehicle.
Don Alm