This is a chevy commercial vehichle, it is approximately 20ft long and 7 ft wide.
This thing is huge, use your imagination, can you see a warthog being that big? No, it doesn't match up visually with the game and what you know to be a warthog.
The hummer is roughly 16ft long and 7ft wide - but it has a double cab and cargo room. It is also too long to be a warthog model.
Modern ceilings are usually no higher than 10' and if you fell from the top of a 2 story building you will have fallen approximately 20'
Take a look at the following pictures...
This is a 'real' warthog when you see it you think 'that is incredibly accurate', just the way you picture a warthog looking in real life.
This is of course the game model...
Those two look so similar, the real model is obviously not 16 ft long - so visually and logically thinking neither can be the in game model - Bungie is off on their specifications... as much research as they do, as much as I love them and their game they are wrong here.
Now look at this full size regular bed regular cab pickup truck. It is no where near 20 ft long and probably only about 5-6 ft wide, it is very close to the size of the 'real' warthog and visual imagery of the in-game warthog.
Honestly the full size truck is probably too long - something like a Toyota Tacoma would probably be the best. It would be sized and lifted almost perfectly.
Now although my opinion is that Col McBride's truck is also probably too long it isn't very often an opportunity to use a truck with AWS comes along.
I think this would look amazing and being AWS it would be even better!
There is no way that 20' x 10' is correct. That would be a gigantic vehicle. Bigger than the Chevy commercial vehicle above. I'm not trying to be an ass here I'm just saying what I think and what I feel - I just hope that you see my point. (Which of course I believe is the correct one)