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Volt vs Prius Plug-In

Hitting the Road

POSTED: Monday, July 11, 2011 - 6:42pm

UPDATED: Wednesday, December 5, 2012 - 7:23pm

In the old days, we gearheads enjoyed the pony car wars among the Big 3, and luckily we still do. But now, comes the rivalry of the future…gas/electric vehicles. So far, it’s Chevrolet with the North American Car of the Year, the Volt; and Toyota with the plug-in version of it’s pioneering Prius Hybrid.
First of all, these cars both plug in to recharge their lithium-ion battery packs. The Prius takes 4 hours, the Chevy 7. Since they will probably charge up overnight, that doesn’t really matter much.
They both run on electric power until the batteries run dry. The Volt will go around 40 miles in this mode, the Prius goes only 15. Then the 4-cylinder engines of both cars kick in. In the Prius, it drives the car itself, and responds to the gas pedal. In the Volt, the engine is essentially a large electric generator feeding the batteries and the electric motor.
They will both give you an extended range of well over 300 miles.
In electric mode, they are both very quiet. Here is the Volt…and the Prius.
On the road, they are, oh what is the word…oh yes, slow. But frankly, they are no slower than an economy car of comparable size. The Volt has 17-inch wheels, the Prius 15.
Mileage is the purpose here. The Volt averages anywhere from 168 miles per gallon if you don’t drive a lot, to 69 per gallon if you do. The Prius is rated at 50 miles per gallon whatever the conditions.
Now, bang for the buck. Both cars qualify for the $7500 tax break for alternative fuel vehicles. The Volt costs $40-grand out the door, so that takes it to the low 30’s. The Prius target price was $33,000, but Reuters is reporting it will be closer to $48,000.
At that price, with the puny electric range, it’s hard to make the case for the Prius’s plug-in technology. Get the Volt, or the standard hybrid Prius for around 30K and you’ll be much better off.
For some reason these cars have become political, but I think they are bi-partisan. After all, what could be more liberal than less pollution. And what could be more conservative than saving money on gas and less imported oil. This could be the common ground everyone talks about.

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Why didn't you include the all electric Nissan Leaf in this article?
http://www.wired.com/autopia/2011/06/nissan-leaf-silently-scales-pikes-p...

Two reasons. I haven't driven the car yet, and being all electric, it's range is limited. It is essentially a city car. Both of the others offer range that make them usable as one's only vehicle. My auto-writer colleagues who have been to some of the Leaf events though, say it is terrific.

If you drive the Volt on highway for long trip, you get only 35 MPG. A regular Prius can do 50 MPG. Do the math.

Again, the car guy has to weigh in. City mileage for the Volt is 101, highway is 93. In pure gas mode, it gets 50 as well.

Roger Gray

We have 5200 miles on our Volt and just over 200 MPG. This includes dozens of trips of over 100 miles. Since January 6th we have used 25.8 gallons of gasoline.

Two other quick things. I'm pretty sure that the Prius won't qualify for the full $7,500 tax credit. To do that it would have to have a battery pack in excess of around 15kw. The expected credit will likely be around $2,500.

Also, the Volt is slow? Hmmmm, that is extremely curious. Electric motors have maximum torque at zero rpm and if you put the Volt in "Sport" mode it is pretty darn fast off the line. Zero to 30 I think it compares very favorably to a lot of high end cars.

The MPG for the Volt is extremely hard to calculate and so the 69 to 168 MPG range is a touch misleading. Some of the Volt owners I know are in the 70 to 80 MPG range over the 3 months that they have owned it but it is because they drove 1,000 miles almost entirely on gas to go pick up their Volt from an out of state dealer. Others are averaging well over 700 MPG. Personally, I'm at about 350 MPG over the nearly 4 months of ownership.

"The Volt averages anywhere from 168 miles per gallon if you don’t drive a lot, to 69 per gallon if you do. The Prius is rated at 50 miles per gallon whatever the conditions."

I think you got your numbers totally wrong.

Actually, based on our nearly two years driving experience with a plug-in converted Prius with a small, 6kWh battery pack and EV range of around 15 miles, his numbers are pretty close to what we're seeing. My wife's commute of 11 miles typically exceeds the 99.9 MPG display on the Prius and readings directly through the CANBUS has demonstrated mpgs as high as 582 mpg equivalent using 4kWh of electricity. Our first year's overall fuel economy was just over 70 mpg.

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