(23 Jun 2023, 7:16 pm)Rapidsnap wrote Seat under the stairs were standard on full height Enviro 400 with Straight staircases.
You can still get them with seats under the stairs, usually on the BYD / ADL Enviro 400EV City vehicles.
Anyway if you want unusual interior design try this - https://www.flickr.com/photos/gjm-photog...9427509076
And going back to the 80s - https://www.flickr.com/photos/gjm-photog...2011343586
And with Nottingham City Transport own designs, they tried to fit seats in any direction possible.
https://www.flickr.com/photos/gjm-photog...0686527466
https://www.flickr.com/photos/gjm-photog...0685775253
https://www.flickr.com/photos/gjm-photog...1458905276
Stagecoach even had seats on the turntable on some of their Bendy Coaches - https://www.flickr.com/photos/gjm-photog...9487580631
In some European countries you had to contend with this...
https://www.flickr.com/photos/gjm-photog...0915201122 - Though this is one that came to the UK, the engine is under the raised seats on the left of the photos.
https://www.flickr.com/photos/gjm-photog...9025712898
I also travelled on a bus from Cyprus at the South Yorkshire Bus Musuem which had an interior with seats in the middle where the central aisle would be....
https://www.flickr.com/photos/gjm-photog...880308320/
Alternatively you could go full standee....
https://www.flickr.com/photos/gjm-photog...7558360795
The Brylaine Falcons had an interesting layout.
If I remember right, Jimmi had footage/photos of some too.