From Business Week, 19June. It's not pretty for the traditional US manufacturers.
Detroit: More Dents
>
> High gas prices are hobbling U.S. carmakers. In May, Asian companies grabbed
> a record 40.2% of the U.S. market as buyers picked fuel-efficient Hondas (HMC
> ) and Toyotas (TM ). Detroit, more dependent on SUVs and pickups, got
> rear-ended: GM (GM ) down 12.5% from May, 2005, Chrysler (DCX ) down 11%,
> Ford (F ) down 2%. GM Chairman Rick Wagoner waxed upbeat about the company's
> prospects at the annual meeting on June 6, but stockholders pushed through
> two nonbinding resolutions that, if implemented, would give them more clout
> when electing directors.
Added to the Asian car numbers should be the Korean cars imported from Korea and sold as GM products. A slight counterbalance would be the increasing number of Mazda's; from the Asian company owned by Ford.