Massey Ferguson's much-heralded flagship MF8690 tractor was launched at the Innov-Agri event in France this week, ahead of a roll-out of four further models in Italy later this year. First shown at MF's 50th anniversary event in May, it is the company's most powerful tractor to date and is rated at 340hp with a maximum power output of 370hp. It is powered by a four-valve common rail Sisu 8.4-litre Citius engine, and is the first tractor to use selective catalytic reduction (SCR) technology.