Here in belgium you have diffrent bus companies, but here in Antwerp, we have delijn. Delijn has diffrent busses but i picked my favorite busses.
lets start with the vanhool newag330 with numbers, as far as i know these busses are from 2007 (if i'm not mistaken):

then, because some of the earlier models are started to become quite old, delijn did put a order back then of some newer models, that are way nice, comfortable, etc:

they look the same, but the inside, engine sound, comfort are waay, waay diffrent. But was is the same is the rear axle of these busses are the same, they turn in the opossite direction than the front wheels so that when you turn, you don't have to take a wide turn, just make a short one. This makes it so much easier as here in Belgium we have a lot of small roads
then after that, delijn has decide to only buy euro 6 engine busses and because they like to keep busses running for around 10 years approximately, they wanted something not expensive, while also having that euro 6 engine. So they decided to go with iveco, not the best busses in my opinion but atleast something better then those old vanhool busses:

In the mean time they bought many other models but here around the city of Antwerp we don't see anything else driving around that those busses. Except for when the first hybrid busses came alone, these where the VDL CITEA SLF-120:

thats it for Antwerp. But now for Brussels and this is a big one, they have made project to let people go through the city of Mechelen to Brussels airport in less than 20 minutes, to do that they needed a nice big buss that has everything in it, so they went with the Vanhool Exquicity 24 (hybrid variant):

as last, i hope you enjoy this, sorry for my bad english btw 