This is just a fun photo, or a bunch of photos in one. First, the red emblem on the chrome hubcap indicated that this car is a Plymouth, probably vintage 1939-1940. Plymouth was a division of the Chrysler Corporation what was manufactured from 1928 until 2001. I remember my dad owned a burgundy 1954 coupe in the early 60's. And then the blue automobile reflected in the hubcap is a 1958 Chevrolet Impala. And then of course, there is the self portrait of the photographer. Behind me is the historic Illinois capitol building with the red dome, built during 1837-1840, and was the site of candidacy announcements of both Abraham Lincoln and Barack Obama. I saw one of those.
So I guess there are more than three subjects in the photo. Slightly more.