I think it is a SWB mate. I had to look twice, as it's not as immediately obvious as usual, but it looked shorter than my old bus.
Check the image I posted above, showing the 3 lengths. The Compact (now called L1) is very short behind the back axle, which is why there's no room for a spare underneath. The Long / L2 and Extra Long / L3 are longer behind the back axle, with the L3 getting an insert between the side door and back axle as well (hence it has a longer wheelbase than the other two). This is the one for sale ... definitely a Long / L2:
This is a Compact / L1:
And the Extra Long / L3 you posted: