Water is the only exhaust emission from the vehicles built by Ballymena-based firm Wrightbus.
The end of support for the ageing operating system turns out to be not quite the end.
"Well-informed, useful discussion" is promised when Times Radio begins broadcasting later this year.
Headliners announced for the event in the Brecon Beacons include Michael Kiwanuka and Caribou.
The award-winning Channel 4 show will come from a new restaurant after seven years based in London.
The Volunteer, by ex-war reporter Jack Fairweather, beats four other books to the £30,000 award.
Framestore's Stuart Penn explains the challenges of making Avengers: Endgame.
Celia Imrie, Caitlin Moran and George MacKay are among the big names expected at the festival later this year.
The winners include Mrs Brown's Boys, Jesy Nelson, Sir Michael Palin and of course... Ant and Dec.
One of the UK's best vocalists prepares her comeback after a period in the pop wilderness.