Tractor test: Deutz-Fahr Agrotron TTV630 With the introduction of the TTV630, Deutz-Fahr is previewing some of the technology that it could be rolling out on future Agrotrons. Just as importantly, this tractor also pushes the firm’s CVT stepless offering into the 200hp plus sector for the first time. Given the strong performance we’ve witnessed from the TTV’s semi-powershift M-series sib, our testers were keen to find out how successful Deutz has been at gelling new with old