I get out to Seattle about once a month and have been trying to rent a smart for over a year now. Hertz, Avis, and Budget have them on their national sites, but nothing is available in Seattle.
This I don't understand because there are more Priuses and ecology concious people in that area.
Even though I request a compact or economy vehicle, they always give me a mid-size SUV which I can never park straight.
If you find a place to rent one, please let me know - I'd much rather tool around in a smart than anything else.