Quote:
Originally Posted by oldtamiyaphile
I think you're under estimating just how bad a H1 really is. Aero is many times worse than any van, amazingly tortured underbody aero...
(vans are actually pretty good aerodynamically - a Ram Promaster has a 0.31cd - even old 70's vans were around 0.45 roughly the same as a current Jeep Wrangler), super wide (frontal area), off road tyres, constant AWD, portal axles (basically a gearbox on each wheel, auto (probably without lock up?).
Although my TJ Wrangler can beat EPA, it's not by much.
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Possibly. The Hummer wasn't designed with fuel economy in mind it seems. However if I could afford a Hummer, I bet I could squeeze out more MPGs than this guy did. Maybe nothing spectacular, but better at least. The van I have is not very graceful. Coating down a hill it loses speed fast unless you keep on the gas. It only "coasts" down very very steep hills lol. The car I'm currently borrowing until I get my hands on my new car gains speed down hills. I can't say how the van and the Hummer compare, but they have some things in common for sure. Point still is I bet in the hands of just about anyone on this forum, a Hummer would get better fuel economy.