saw a record number of four 4WD cars entered, with John Miles in a Lotus 63 achieving the best finish of 10th. Tyre technology had vastly improved and 1969 also saw the introduction of wings in F1 and as there was no wet race that year, all the competitors ceased developing 4WD F1 cars as wings appeared as an easier way to increase grip. 4WD no longer presented any advantage in F1, if it ever did. Team Lotus made a last attempt with the Ferguson system on the gas turbine powered Lotus 56B in 1971, but the car was uncompetitive. Eventually, in 1971, Tony Sheldon decided that too much money had been pumped into research with no real result and closed down Harry Ferguson Research Ltd Tony Rolt was convinced of 4WD's future in road cars and in 1971 formed a new company called FF Developments to develop Ferguson's four-wheel drive systems. Complete Formula One World Championship results (key) See also Ferguson Company References Citations Bibliography Lyons, Pete. "10 Best Ahead-of-Their-Time Machines", in Car and Driver, 1/88 Ferguson P99: The only four-wheel-drive F1 winner Results from Formula1.com Traction for Sale - the Story of Ferguson Formula Four-wheel Drive Bill Munro & Pat Turner. ISBN Earlswood Press 2019 External links Massey Ferguson Tractor Web Site Ferguson Family Museum Formula One constructors Formula One entrants British auto racing teams British racecar constructors Auto racing teams established in 1961 Auto racing teams disestablished in 1961