Draft Control helps maintain the desired implement height, raising the implement only when required to prevent tire slippage or engine stall. Four-Wheel Drive engages at the push of a button.

B. B. Johannsen, Tractor Hitches and Hydraulic Systems—An Implement Designer's Viewpoint, SAE Transactions, Vol. 62 (1954), pp. 173-185 ...

Three-point hitches, which provide greater stability than drawbars and can connect to a much wider range of implements, have been the standard type of tractor hitch since the 1940s. Hydraulics: ...

Today’s tractors, with their high-tech gadgets and climate-controlled cabs, aren’t anything like the plows pulled by our ancestors not even a century ago.