IMU-managed traction control, semi-active suspension, and variable valve timing are effective (and awesome), but not strictly necessary. The motorcycle world has moved beyond the KLR. And, it must be said, the agricultural world has moved beyond the stereotypical conception of a simple tractor. These days, top-end John Deeres are as far removed from the old days as a Kawasaki ZX-10RR is from a Z1. GPS-guided tractors with computer-aided tillage technology may fit a field with amazing precision, but that doesn’t make an old John Deere 4020 with a moldboard plow obsolete.