Question about U.S. Buses

Hi!
Since I'm not american, could those of you who are tell me if U.S. Uses non articulated 3 axle city buses?
Similar to this one:

I've tried doing some research, but I did not find any Low Floor 3 axle U.S. Buses.

Thanks for any help.

 

Hmm interesting, but Is is due to some law, or are they just too big? I've found a few high floor coach style buses, but no Low floor ones. I am debating if I want to create one for BeamNG, but I do not know if a bus like that would even be legal to drive in the U.S.
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I know about the Double-deckers, but are they using a single deck versions? (You're already making a double decker and you did not respond to the PM, so I'm kind of looking for ideas)

 

I know about the Double-deckers, but are they using a single deck versions? (You're already making a double decker and you did not respond to the P

Hmm interesting, It looks like sort of a hybrid between a city bus and a coach. It is low, but It doesn't look like full on low floor bus. I'm calling it good enough. Thanks guys!

Oh and do you know what model bus is that?

 

I like the design of those, but they are full on coach style buses, which I'll be trying to make, but not now. I want to start with easy stuff first. Then I'll try to make a coach, as model wise it will be simple, but It will require a major Jbeam Redesign, while this one will only require me to add a few nodes and only about 100 beams.
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Okay, next question about the 3 axle buses
Would this kind of tag axle be used? (Steerable and liftable tag axle)

Or would it be better to just take the Front Suspension and spin it around 180 degrees and change the steering linkage for hydraulic rams?

 

Okay, next question about the 3 axle buses
Would this kind of tag axle be used? (Steerable and liftable tag axle)

Or would it be better to just take the Front Suspension and spin it around 1

Thanks! That is quite a lot of useful info.
I'm debating over a setup with powered mid axle and steerable rear tag axle, but that setup could make routing the driveshaft a bit harder.
My biggest problem right now is finding the space for said axle. With current space between the axles it would need to be mounted in the rear with airbags and shocks on top.

I'm thinking about mounting this:

but spun 180 degrees. The only part that concerns me are the pivot points mounted in the rear, would they cause problems during braking as the axle would then push on them instead of pulling like it does normally?
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Surprisingly, the front suspension setup would actually fit in the rear.