hybrid cars - if a celebrity knows about an eco friendly hybrid car limousine does that mean that they have to use it?

The question is:
If a celebrity who is into saving the environment, knows they can get a eco-friendly hybrid car limousine in any major city in the USA, does that mean they must use it? Don't they know that the un eco-friendly gas guzzling lincoln town cars are not the way to get around?

So far that has not been the case, but maybe because they didn't know they could get a limo that was one of the hybrid cars? Can an eco friendly hybrid car match the comfort of a town car?

If the eco limo companies have any impact, all celebrities will soon be in a prius limo:
black prius limo Driver to celebrities Y. Fray, of ECOLIMO in Los Angeles, is a chauffeur on a mission, to make sure celebrities know that the prius he drives offers all the style and amenities of a traditional hired car service, at a lower cost and a lower impact on the environment.

What cities is the limo service offered?
Los Angeles, New York, Boston, and San Francisco has the black prius limo available.

*eco fiendly with a hybrid car limo in new york:
In New York, OZOcar has 80 Toyota Priuses. The OZOcar hybrids are equipped with high-speed wireless Internet access, an Apple iBook and over 150 Sirius satellite radio stations in the back seat. While the founder is a true environmentalist, it helps to realize dreams when you have deep pockets. One of its founders, Jordan Harris, previously founded Virgin Records US and “Rock the Vote”—as well as the “Green Car to the Red Carpet” which delivered celebrities to the Oscars in a Prius.

*eco friendly with a hybrid car limo in cambridge, mass:
In Cambridge, Mass., You can hire PlanetTran to drive you around. R. Seth Riney, a local entrepreneur and Yale graduate, started PlanetTran after making a New Year’s Day resolution in 2003 to question American’s public transportation system. In the company brochure, Riney writes,

*eco friendly with a hybrid car limo in Los Angeles:
In LA, you can hire ECOLIMO to drive you around in a Prius
The owner of ECOLIMO passes the hybrid’s fuel savings to the customer. Our rates are higher than a taxi but lower than most black car services.

*eco friendly with a hybrid car limo in San Francisco:
In SF, you can hire Green Car Limo, which features the Toyota Prius with custom leather interiors.

What about room? Is there enough space in a prius?
The Prius hybrids backseat passenger space is only a couple of inches smaller than a Town Car. Besides, most limo passengers are single passengers with one piece of luggage. For larger parties, ECOLIMO offers a Chevrolet Surburban SUV, outfitted to run on compressed natural gas.

The long term goal of hybrid limo entrepreneurs is to have an ecolimo service available in every major city.