Anyone here own a Yaris?

If you are referring to the North American version, it has not gone on sale in the U.S. yet. The hatchback became available in Canada last fall, while the U.S. will get it this spring. The sedan will also become available in the spring I think.

Will a diesel be available?

Not in the U.S.

I really like the Canadian RS model. Funny, we get the 5dr and the 3dr Yaris, but the US only gets the 3. Plus, we have the RS versions with the entire body kit and aluminum wheels and sport seats.

I HATE the base seats, fugly... the material is nasty looking.

the US will only get the 3 door model?

No kidding?

Any after market seats that are better?

Check out the Yaris on Toyota.com.

The U.S. will get 3 models, the 3 door liftback, 4 door sedan, and 4 door S sedan.

Go to Toyota's web site for pictures of the exterior and interior or better yet, go to a dealer and check it out before you go spending money on aftermarket seats. Also, if the car is equipped with seat-mounted air bags, then aftermarket seats and seat covers wouldn't work.