The 1970 NASCAR Grand National Series season, the final year under that name before the series rebranded as the Winston Cup in 1971, ran from January 18 to November 22 and featured 48 races (plus qualifying events). Bobby Isaac captured the championship in dominant fashion, driving the iconic No. 71 K&K Insurance Dodge Charger Daytona (often the winged Charger 500 variant) for owner Nord Krauskopf and crew chief Harry Hyde. Isaac secured 11 wins, 13 poles, 32 top-5 finishes, and 38 top-10s across 47 starts, earning 3,911 points and edging out runner-up Bobby Allison (3,860 points, 3 wins) by just 51 markers in a tight battle. James Hylton finished third with consistent runs but only one victory.
The season highlighted the aerodynamic “wing car” era, with Dodge and Plymouth products (including the Superbird and Charger Daytona) dominating much of the competition and winning the vast majority of races. Key highlights included Pete Hamilton’s surprise victory in the Daytona 500 in a Plymouth Superbird (his first of three superspeedway wins that year), Richard Petty’s strong showing with eighteen wins despite missing several races due to injuries from his Darlington wreck, A.J. Foyt taking the season-opening Motor Trend 500 at Riverside, and upsets like James Hylton’s win at Richmond. The campaign marked the last full NASCAR national series season with a dirt track race until much later revivals, and it featured intense competition among factory-backed teams amid the aero wars. Isaac’s title was a career pinnacle for the hard-charging driver from Catawba, North Carolina.
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