i thought that the 158's are, or to be fair as most have been refurbed recently were known as flee busses?
Not so sure about
FGW▸ 's fleet now they've been spruced up, but I dread to think what wildlife was inhabiting the two
ATW▸ 158s I found myself on over Christmas - they were not just internally very tatty (torn seat covers, wall coverings peeling off, 'blown' double glazing units) but objectively filthy, with ingrained dirt in the carpets, seats and walls that nobody has bothered to clean in a very, very long time.
By the way, it wasn't the same unit both times because, in true Arriva style, they were painted in completely different liveries!