we have a peugeot boxer converted to a camper.
I have the swb low roof with 100bhp engine. I average 37mpg on a roads but 32 on the motorway.
Boxer is great as its wider than a T5…I sleep sideways. At 5″8 I can just about stand up in it, enough to cook standing and change easily – no chance in a t5 without pop up / high roof.
Its my only vehicle, fits in normal car parks (too high for multi- stories but so is almost every van)
I have corner seating that pulls out into a double bed, cooker and cupboard and a half height (so doesn’t block the rear windows) boot. It fits 3 bikes in or 4/5 surfboards.
Happily spend a long time in it. If it wasn’t my only vehicle i would consider a mwb but I have enough room for 3 adults to spend a lot of time in, change into wetsuits etc…
Definately worth trying to have in van storage for bikes, I always got nervous sleeping in the van with them on a rack. Plus when we were away and wanted to sight see for a day or few days around a city it was a nightmare trying to hide bikes.