G.M. was left as the only foreign automaker willing to wade into a market dominated by Hyundai, with nearly a 75 percent share.

G.M. is not the only American automaker that has been playing up its roots.

For several years, Toyota and Honda have been the only automakers selling mass-market hybrid cars.

It is the only automaker in the country and one of its largest exporters.

He used estimates for sales of Mazda, the only automaker not reporting today.

To be sure, Chrysler is not the only automaker struggling.

However, Bantam was the only automaker that could meet the Army's proposal to have a running prototype ready in 49 days.

The only automaker with explicit plans to export assembled cars to industrialized countries is Honda.

Not so for Chrysler, the only American automaker with sales that rose in 2005.