We have a 2001 Echo and our 2003 Prius is quieter and smoother at highway speeds. Yes, I'd like it quieter and some Prius owners have lined their engine compartment with sound deadening material.

For window air noise, I've started using outside air and the fan with the thermostat turned all the way down. It is quieter and the stream of air is enough for cabin comfort.

Bob Wilson

Operation Iraqi Oil Freedom:

Automatic, stock, project car.

My other 1500 cc car:

Automatic, stock, backup car.
Free speech, dialog and knowledge thrives without the poison of SPAM.