As I was driving through town this evening did my eyes deceive me, or did I see an Arriva Gemini Hybrid on the 308 in plain max livery (rather than the usual eco / hybrid electric livery?). It was stopped at St Mary's Place with '308 Newcastle...' on the screen, so in service but had no Arriva or Max lettering on it.
I could be wrong but I was sure it was a hybrid as I noticed the bottom rear windows and larger rear overhang,
:-s