I almost drew some 'rolling stock', but I'm not much of a railroad buff.
So, I'm pretty darn 'eco-conscious. I prefer walking or biking to driving, but, like the vegetarian who succumbs to the siren song of bacon, I like classic cars. Pretty much any car before 1975. If they could make a hybrid SUV that looks exactly like a 1970 Bronco, a '77 Scottdsale Stepside, or a Shelby Cobra, I'd sell my soul for a garage like Leno's.
Anyhoo. I was messing around with extreme (or, extremely silly) 3-point perspective and made these very, very small thumbnails:
Then I decided that I needed to work on my Adobe Illustrator skills. Both were done in about an hour each (not including sketching and scanning). They aren't perfect, but not bad for an hour each. One Shelby Cobra-ish car and one Fastback Mustang-y sort of thing. Enjoy!