Lots of old trucks go down that way too.

Are those GM fishbowl windows?

How many rigs from the 70's do you see on the road today?

This kind of wiring costs about a million bucks per mile and prevents passing. Bad idea.

“most of which get nearly double the mileage”

Trains are only Diesel electric because it is easier to hook up 3,000 hp to multiple wheels through converting rotation to electricity back to rotation. Not for making a hybrid.

1995 New Flyer D40

There are different categories of hazmat, and some (like the aforementioned oily dirt) is regulated less than explosives.

Quantity. For instance, you can transport 5 gallons of gas in your car without a Hazmat endorsement, but you do if the quantity is greater.

“...and 95% of all guns supplied to the Mexican cartels come from......guess where?”

Yup, it’s on vending machines now.