Mazda ended the year on a high note with December year-over-year sales up 18%.

Mazda ended the year on a high note with December year-over-year sales up 18%.

Some of OC’s largest automakers recorded sales gains in December amid an overall industry outlook that’s optimistic for 2021.

Hyundai Motor America Inc.’s December sales increased 2% from a year ago to 66,278. Sales for 2020 for the Fountain Valley-based automaker were still off from the prior year by 10% to 622,269 vehicles.

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Kia Motors America Inc. of Irvine sold 53,764 vehicles in December, up 4.9% from a year ago. The company ended 2020 with sales totaling 586,105, down 4.8% from 2019.

Irvine-based Mazda North American Operations notched an 18.2% increase in December sales from the year-ago period to 31,308 vehicles. Sales for the year were up 0.2% to 279,076.

Mazda North American President Jeff Guyton called the results “remarkable when you consider the events of the year.”

Sales for Fountain Valley-based Genesis Motor America Inc. had not yet been released as of this writing, while Rivian LLC and Karma Automotive LLC, both of Irvine, do not currently disclose monthly performance.