Hyundai Motor and its sister company Kia Motors posted their best-ever sales performance in the U.S. last year.

Hyundai said Wednesday that it sold 538-thousand automobiles in 2010 in the U.S., up 24 percent from the previous year.

Kia, meanwhile, saw its sales grow 18-point-seven percent year-on-year to 356-thousand cars, breaking a previous high set in 2007.

As a result, Hyundai and Kia sold a combined 894-thousand automobiles in the U.S. last year.

Meanwhile, the two companies’ combined sales are expected to exceed one million in the U.S. this year.

A total of eleven-point-five million cars were sold in the U.S. last year, up eleven percent from 2009.

U.S. carmakers took the lion’s share of the market, with GM selling two-point-two million cars and Ford selling one-point-nine million automobiles. Toyota sold over one-point-seven million and Honda one-point-two million autos in the U.S. market.