Is there any difference in DRIVING a gas class A vs diesel?

^^^ But a diesel has TORQUE a gasser doesn't. Where a gasser fades on a long, uphill pull, a diesel just keeps humming along.

But you are correct, some diesels have the "low torque" engines, the bigger ones don't.

Our 39'er is 400hp, but it's also 1200 #/ft torque. That the number that makes driving it more enjoyable.

My Super Duty is a diesel too, for a reason.