In 1979 I bought a new Dodge 4x4. When talking to the salesman, he said the warranty covers most anything, just bring it in, they all need something fixed -- except the imported (I think D-50) they never have anything wrong. How times have changed.
My '75 Corvette has the battery behind the driver, no venting. I've been more concerned with an explosion than breathing vapor. Years ago, as my son started our Craftsman mower, the battery exploded, blowing the hood open and scattering the vent caps almost 15 feet away.
Got the truck back from the dealer today. This does not make a lot of sense to me, but this is what the service manager said: In the winter, hot air is only directed to the windshield and from the vents on each top end of the dash. He said (and this is the part that does not make much sense...
I think this is common in new cars; the beams are more focused than before. I used an LCD headlight on my Harley, and it was almost impossible to see when turning a bend in the road. They make LCD lights for motorcycles, but this was not one.