Stagecoach NE should be due new buses for the Newcastle city sightseeing routes this year as they are using X/W reg buses my plan would be:
4 new volvo B5LH wright gemini 3s fleet numbered 14001-4 and for them to eenter service either this season or next (most likely next). This will maean greener cleaner buses for the city. This new fleet will include windows up the staircase. They will also have permanent full rear ads promoting them being greener cleaner and/or cynils on the side promoting them being greener and cleaner.