From its introduction in 1991 through to its replacement by the TS115 at the end of 1998, the Ford, and from 1995 on, New Holland 7840 has been either at or near the top of the UK tractor sales charts. And with good reason. Powered by an unburstable 6.6-litre PowerStar engine, the 7840 always offered ‘good bang per buck’. So, too, can a used example