The debate - or rather war - between the EGR and SCR camps shows no signs of letting up, with both groups of truck manufacturers fiercely defending their engine emissions technology for Euro 4 and beyond. The latest shot came from Mercedes-Benz, whose Nick Blake called into question MAN's figures on the comparative running costs of EGR and SCR - specifically, how much AdBlue a typical truck would use. We await MAN's reply eagerly...

Stephen Ladyman has made a rare public comment on longer, heavier trucks (LHVs) - or rather, on longer trucks. The Transport Secretary told the FTA Summit that he had 'an open mind' about longer vehicles but was not inclined to encourage hopes of heavier vehicles.