Sales of new cars and light trucks in Mexico fell 0.8 percent in January from a year earlier to 96,846 vehicles.
Nissan was the market leader in January with unit sales of 20,831, an 8.2 percent increase. General Motors was not far behind at 20,487. GM's sales dropped 5.3 percent compared with January 2007.
No. 3 Ford Motor Co. was down 23.2 percent to 12,210 vehicles. Chrysler LLC, Mexico's No. 4 seller, posted a gain in January. Chrysler sold 10,786 vehicles, up 8.6 percent from last year.
Toyota Motor Corp.and Honda Motor Co. both reported sharp increases during the month. Toyota soared 30.6 percent to 5,690 units, while Honda jumped 23.0 percent to 5,272 units.
Smaller-volume automakers posting sales gains in January were BMW AG, Fiat Auto S.p.A., Mazda Motor Corp., Mercedes-Benz Group, Porsche AG, Suzuki Motor Corp. and Fuji Heavy Industries Ltd., which makes Subaru vehicles.