No, it's not some kind of mysterious truck tank -- you've just stood in the shadow of a heavy-duty dually truck. A dually, or a dual rear-wheel truck (DRW) if you prefer the official nomenclature ...

It's common to see pickup trucks on American roads since they are consistently among the best-selling vehicles in the U.S. A slightly rarer sight are the bigger variants known as dually trucks.

just like a heavy-duty pickup truck, which is usually lifted for show and business purposes. It also has additional HD traits because we are dealing here with a dually Tesla Cybertruck.