I want to say you stole those out of a Mercedes Benz history book. They really look like classic 300 SL Promo shots or something that'd be hung up in the World HQ.
As Gtuned said, they look like they've come straight out of an artistic book on classic cars. The silhouette image at the bottom is especially nice to look at, and the close ups of details work well with the black and white, allowing you to pick out the details you've focused on rather than being distracted by too many colours.