Johnson crossed the finish line in 39th position and completed 285 laps of the 8.4-mile circuit in the modified NASCAR Cup Next Gen Chevrolet Camaro ZL1 run by Hendrick Motorsports.
The car ran as high as 27th overall but suffered a setback on Sunday morning when it suffered a driveline failure that required a lengthy repair.
“My heart is full,” said Johnson, who shared the car with Jenson Button and Mike Rockenfeller. “For all the reasons we know – coming here with NASCAR, Hendrick, Chevrolet, Goodyear.
“Many of the people here working were on different teams that I won races and championships with. There were so many familiar faces, to have this experience was just off the charts.
“The fan reception – whether it was at the parade, or on the cool down lap just now. Even the corner marshals were going nuts. Everything was just incredible.
“My bucket is full. I’m really happy.”
The one-off entry in the centenary Le Mans event was to celebrate 75 years of NASCAR, whose president Jim France was inspired by his father, NASCAR founder Bill France Sr who brought two stock cars to Le Mans for the 1976 edition of the race.
Source: Autosport