This battle is being fought, and will be won, on the streets. And in New York City the hybrids are winning. New York’s Dept. of Transportation and other agencies are replacing their Ford Taurus and Contours with Prius and Civic Hybrids, not Hummers.

As of May of this year, 375 of approx. 13,000 yellow cabs had hybrid engines. The City has mandated that by 2012, 100% of the yellow taxi fleet must be hybrids. Link to NYC press release here. The new Ford Escape Hybrids get 30 MPG. The vehicle they will replace, the Ford Crown Victoria, gets 14 mpg. Taxi drivers in NYC absorb all the operating costs, including gas. So if they can spend less money on gas – they pocket the difference, and they make more money. $9,000, assuming 80,000 miles and $3.00 per gallon.

The next step will be the 38,540 livery vehicles licensed by the Taxi and Limousine Commission, often referred to as “black cars,” the predominant model being black Lincoln Town Cars, which also get about 12 miles per gallon.

There is no government mandate to switch, however, a combination of market forces and one government incentive seems to have sparked the beginning of a change in the right direction. Outside Goldman Sachs‘ offices on Pearl and Broad, across the street from Fraunces Tavern, at any given time, you can see two or three Prius “limos” among the Town Cars. The Priuses get 40 mpg. The Lincolns get 12. The fuel costs for a Lincoln are about $20,000 per year, three and a half times higher than $6,000 for a Prius. Which translates to $14,000 more for the drivers.

The drivers love them – they pocket the cash. The passengers love them – they are a much quieter ride, they are better for the environment, and as an added bonus, they are permitted to use the High Ooccupancy Vechicle / Low Emissions Vehicle aka (Clean Pass) lanes. In New York rush-hour traffic, this could cut some trips in half – and cut from half an hour to an hour off of a rush-hour trip to Newark or La Guardia.

They’re also good enough for the United States Army’s Special Operations Command, which includes the Special Forces, and would include the Delta Force, if it officially existed.

For other large groups of vehicles – the Postal Service, the New York City Police Department, our ambulances – using hybrid engnes isn’t even part of the public discussion, yet. But it will be. Write your Rep in Congress. Senate – Click Here , House, Click Here.