The only other time F1 title contenders have been equal on points going into the final race was in 1974, with McLaren's Emerson Fittipaldi battling Ferrari's Clay Regazzoni for the title :
All engine suppliers that partnered McLaren in Formula 1 since 1966
F1 1974: McLaren Man Wins After Year Long Battle - The Checkered Flag
F1: remember when two drivers were last tied on points going into the final round? | Top Gear
Automobilista 2 | The Ultimate Formula 1 Season Guide | 1974 - Formula Retro Gen1 | RaceDepartment
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Classic #f1 Car For Sale - 1974 Shadow DN3 - Retro Race Cars
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Charles Leclerc crashes ex-Niki Lauda Ferrari at Monaco Historic
When F1 championship-hopefuls were last tied on points | Thank Frankel it's Friday | GRR
1974 March 741 Formula One - Motorsports Market
F1 1974 Brands Hatch GP - YouTube
Alesi and Arnoux to race 1974-spec Ferrari at Monaco Historic GP
Formula One Grand Prix 1974 Cars | Auto da corsa, Vecchie auto, Auto moto
1974 Formula 1 season - OldRacingCars.com
Steve Cook's ex-Hans Stuck 1974 March Formula One Race Car, chassis number 741-1
2 rivals, 1 race to go, 0pt difference: how the 1974 F1 title was decided - Motor Sport Magazine
2 rivals, 1 race to go, 0pt difference: how the 1974 F1 title was decided - Motor Sport Magazine
Alesi and Arnoux to race 1974 Ferrari F1 at Monaco
1974 Niki Lauda F1 @ Historic Monaco 2016 - YouTube
Tyrrell Cosworth - 1974 Formula One Racer | Peter Blackert | Flickr