The shift comes as Ford is plagued by the fallout from its costly EV strategy and production constraints affecting its light- or medium-duty truck unit. 

Henry Ford must be turning in his grave.

Cox Automotive's third-quarter sales forecast, released earlier this morning, expects Hyundai's US deliveries to rise 4.4% quarter over quarter to 511,421 vehicles, while Ford's fall 7.7% to 504,172. The estimates, detailed on slide 27, put Hyundai on track to outsell Ford in the US for the first time.

Toyota, Hyundai and Kia are benefiting from US consumers seeking competitively priced hybrid lineups. Toyota, Hyundai and Kia are benefiting from competitively priced hybrid lineups. A record one in six new vehicles sold in the US in the second quarter was a hybrid, according to the report. 

"This is a moment where consumers are trying to find options that offer more fuel efficiency," Stephanie Valdez Streaty, director of industry insights at Cox, told Bloomberg. "Hyundai and Kia are starting to have those options available and you can see they're gaining share because of that."

Bloomberg noted that Ford faced mounting headwinds. Fires at a key supplier plant last year constrained components to its top-selling F-Series trucks, while the phaseout of the Escape compact SUV has reduced volume. 

The report showed the auto market is stable, with higher-income buyers supporting overall volumes, while cash-strapped households are rewarding automakers that offer hybrids.