(10 Jan 2016, 9:43 pm)S813 FVK wrote But surely there would have been a branded vehicle sitting spare in the depot, too? Going for the unbranded spare because it was parked closest to the depot exit just seems lazy.
May be to get the mileage up? If branded ones are always used in preference its never going to do anything. Its not as though the branded ones are going to appear on the 'wrong' route so I can't see that it matters.