Plymouth's new buses

Plymouth is fast gaining Volvo B7s from Manchester, not to replace the older fleet, but simply to add to the fleet for the new services. These buses will be used against Plymouth Citybus, so their reasoning is newer bus, therefore passengers will use them. But on routes such as the 43 and 21/51 Plymouth Citybus are using even newer/same age Mercedes Citaros, which are really, that bit nicer than the B7s! But Ohh well!