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Driving green: My hybrid days

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Posted by Jeffry L. Johnson on July 18, 2004, 11:17 pm


Driving green: My hybrid days
We take the Toyota Prius into the real world of New York City and find a
few surprises.
June 29, 2004: 3:39 PM EDT
By Peter Valdes-Dapena, CNN/Money staff writer

NEW YORK (CNN/Money) - I really tried to avoid getting sucked in, but
after four days, it was too much to resist. I had insisted I would drive
like a New Yorker. But, finally, I let a car soften me. And what did
that get me?

An extra five miles to the gallon.

I recently spent five days with a Toyota Prius, courtesy of Toyota. It
surprised me. I had always read, and written, that the car's gas mileage
was better in stop-and-go city driving than it was in steady highway
Perhaps it is, but not in New York City's version of city driving.

The Prius was clearly in its element in the low-speed, dart-and-weave
grind of urban traffic. The egg-shaped sky-blue metallic car looked like
it would be the vehicle of choice for the Easter Bunny, but its stubby
nose was perfect for swinging around double-parked delivery vans.
Parallel parking was an absolute breeze.

In terms of fuel mileage, though, the Prius's performance on my daily
commute was surprising. It was good, but far from what I'd expected.
Tricks of the trade

One of the Prius's most important fuel-saving tools is a computer screen
in the center of the dashboard.

When it's not displaying climate or stereo controls, it shows a
continuous readout of the car's fuel-saving performance. I could choose
either a simple bar graph or a dynamic display showing the
moment-by-moment activity of the car's electric and gasoline
powerplants, along with a readout of its fuel efficiency at every

On a 20-mile weekend test drive, I was able to mix things up a bit -- a
few stretches of highway with surface roads mixed in -- and the car
averaged about 45 miles to the gallon. That was about what I'd expected.
The EPA estimate for this car is 55 miles per gallon in combined city
and highway driving. Since no car really achieves the EPA estimated
mileage, 45 miles per gallon seemed about right.

What was odd was that its city-vs.-highway gas mileage performance was
what one would expect with any car. The EPA estimate gives a higher
mileage number, 60, in city driving and a lower one, 51, for highway

On the highway, I frequently saw fuel mileage numbers in the 60s flash
by. During my daily commute to work, which involved no highway driving
at all and took me straight through the congested heart of mid-town
Manhattan, I was averaging 30 miles to the gallon. By the standards of
most cars, 30 mpg in city driving would be considered outstanding.

In this case, I wondered what I was doing wrong.
How it works

The Prius uses both a 76 horsepower gasoline engine and a 67 horsepower
electric motor. Some of the power for the gasoline engine is used to
charge the battery for the electric motor. (Toyota rates total
horsepower output for the hybrid system at 110.) When the car is
stopped, even for a moment, the gasoline engine shuts off altogether. It
doesn't come back on until the car is rolling along again.
2004 Toyota Prius in Queens, New York.

At very low speeds -- like in a traffic jam -- the car can putter along
with just the electric motor. At higher speeds, the electric motor acts
sort of like a turbocharger, providing a boost for a gasoline engine
that, ordinarily, would be out of its league powering a vehicle of any
real size.

The key to winning the fuel mileage game, I quickly figured out, was
trying to keep only one powerplant at a time in operation as often as
possible. It's not easy. Still, in my last cross-town drive, going as
gently as I could without causing a road rage incident, the best I
managed was an improvement to 35 mpg.

A Toyota spokesperson later theorized that the Prius might have gotten
better mileage in genuine gridlock. My commute consisted more of
high-speed dashes followed by long, still waits. Not the best fuel
economy scenario for any car, including the Prius.
Inside the egg

Fuel economy aside, the Prius is a far better car than its emphasis on
fuel economy might suggest. Certainly, no one will confuse it with a
performance car, but the light weight Prius never felt like a laggard.
Its tall profile and soft suspension give the car some serious wobbles
in hard cornering or on worked-over pavement, though. Inside, the car is
surprisingly roomy with space for four adults and their stuff.

The Prius's array of deliberate oddities is aimed squarely at the heart
of a techno-geek like me. There is no reason the Prius couldn't start
with the turn of a key like any other car. Instead, the driver shoves a
small plastic box into a rectangular hole in the dashboard and presses a
start button designed to resemble a computer's power button.

But it sure makes starting the car in the morning much more
entertaining. So does putting the car in gear by flipping a large,
stubby toggle near the steering wheel rather than pulling a more normal
gear selector.

One thing the Prius really didn't deliver during my test drives was a
crowd. I was ready and able to answer questions from curious strangers
wherever I stopped. None came. As far as I could tell, no one even gave
the car a second look. I was barely even able to detect the occasional
first glance.
Perhaps Toyota's public relations campaign has worked so well that
curiosity has simply vanished. If you're on one of those months-long
waiting lists to buy a Prius, don't worry. The car is still pretty cool
and it probably still will be when you get yours.

But it's not going to get you any dates.

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