More to the fact, why is the rear centre headrest so wide? It looks like one of the outboard headrests but I can't wrap my head around the fact that the picture looks fairly centred and not taken at an angle.
You have to ask the truck driver to be sure. I guess he/she was saving battery power to improve his/her MPG. The truck driver did flash the head light when he/she thought that I left too much safe distance in front of my car. See another photo:
It is a wood burning car. It's an old technique, heavily used by Germans in WWII. You heat wood without oxygen to drive off a combustible gas. The combustible gas powers the car. Tom
[ame=http://en.wikipedia.org/wiki/Wood_gas_generator]Wood gas generator - Wikipedia, the free encyclopedia[/ame]
i'm sure you're in the right lane as well. i hate when the road is full of trucks and i have to keep changing lanes so they can pass. right, center, right, center...