If I drove an Omni, the plate’d read POTENT.
Be great advertising if I were male. 
(with apologies for being late getting back to this…)
My feeble brain promptly began to sing:
Suba-ru,
Suba-me,
Suba-ru,
Suba-rah-ha-ha-ha
My knapsack on my back.
(Perhaps I’d better go back to being tardy!)
Sorry. No. Pleiades. Located in Taurus.
Did a google search.
7sisters works.
It’d be kind of obscure for most people, but you could name your Subaru .HACK//
(The .hack// series is a bunch of anime and games that chronicle a bunch of players who are part of a virtual reality MMORPG that’s becoming a little too real. It’s sort of The Matrix as done by D&D Geeks. :D)
Toyota PRIUS
but with a karet under it between the I and the U and above it AP
Tacoma born and raised. It’s called The Aroma of Tacoma, not Tacoma Aroma. And yes, the owner of a Toyota Tacoma that lives in Tacoma has a vanity plate that reads AROMA. It was on the front page of the Tacoma paper shortly after the Tacoma first went on sale. The truck even had a couple of skunks painted on the tailgate.
And the phrase was popularized from a ditty that was played on the local stations in the area in the early 70’s. The song was Godzilla Ate Tukwila.
I still love the plate I saw in the parking lot at one of my former jobs.
It was a SAAB.
The license plate said “SNAAB”
One of those literal “Laugh out loud” moments.
My contribution:
Honda Odyssey: 2001SPC
I guess since I own a Honda Accord I could get a plate that said HELSINKI
My wife drives a Mazda Tribute. How about a plate that says TARRY?
The Tribute is essentially identical to the Ford Escape. I can’t quite come up with a way to squeeze “PINACOLADA” to fit on one of those.