Customized App /Web Crawler to Pull Ad Copy from Auto Dealer Websites

We have a print auto publication and wanted to see if there was a way to develop an app or web crawler that can pull out the information we need for each vehicle being advertised and the photo. Each auto dealer site has a different layout with vehicle information in different fields - Make, Model, Year, VIN #, Inventory #, Features, Miles, Price. Each dealer/advertiser chooses 12-16 cars to advertise so we have to go in to each vehicle page and either type out or copy and past the information we need ....which painfull and really inefficient. We wanted to know if there was an app or something we could have on our computer that would be able to pull the information we need automatically off the page we need for each vehicle that could be pulled into a text format - such as a word doc or something similar.