First two sketches are indigo blue pencil on paper. Third sketch is black ink of vellum.
Doing some ideations on tank design made me want to make one equipped with a flame thrower. After a few iterations, what started as a tank turned into more of an armored car with a turret on the roof. I was originally going to put a small winshield on the fron of the vehicle, but decided on louvered vents to see out of.
Using vents insted of glass gives the vehicle a more rugged and indusrial look while making for a mor interesting profile.