Tractor test: John Deere 7920 Porky Deere fights off hardware flab John Deere’s 7020 series has had, and still has, its critics, yet the tractors continue to sell well. Why? Perhaps those same critics, whose comments tend to centre on the 7020’s weight, have got it wrong – or not altogether right. Our test of the range’s flag, the 147kW/200hp (ECE) 7920, attempts to sort through at least some of these mixed messages