Prium - Environmental Impact - Fuel Economy and Emissions

Fuel Economy and Emissions

United States

Since its inception, the Toyota Prius has been among the best fuel economy vehicles available in the United States, and for the model year 2012, the Prius family has three models among the top 10 most fuel-efficient cars sold in the country as rated by U.S. Environmental Protection Agency (EPA). After the Honda Insight first generation was discontinued in September 2006, the Prius liftback became the most fuel-efficient car sold in the American market, until it was topped by the Chevrolet Volt in December 2010, as the plug-in hybrid was rated by EPA with an overall combined city/highway gasoline-electricity fuel economy of 60 mpg (3.9 L/100 km; 72 mpg) equivalent (MPG-e). According to the EPA, for the model year 2012, and when only gasoline-powered vehicles are considered (excluding all-electric cars), the Prius c ranks as the most fuel-efficient compact car, the Prius liftback as the most fuel-efficient midsize car, and the Prius v as the most fuel-efficient midsize station wagon.

Economic and environmental performance comparison
among Prius family models sold in the U.S. (model year 2001-2012)
Vehicle Model
year
EPA
City mileage
(mpg)
EPA
Highway mileage
(mpg)
Tailpipe
emissions
(grams per
mile CO2)
EPA
Air Pollution
Score
Calif/Others
Annual
Petroleum
Use
(barrel)
Prius 1st gen (NHW11) 2001 - 2003 42 mpg (5.6 L/100 km) 41 mpg (5.7 L/100 km) 217 (135 g/km) na 8.0
Prius 2nd gen (XW20) 2004 - 2009 48 mpg (4.9 L/100 km) 45 mpg (5.2 L/100 km) 193 (120 g/km) 9/7
LEV-II SULEV
7.2
Prius 3rd gen (XW30) 2010 - 2012 51 mpg (4.6 L/100 km) 48 mpg (4.9 L/100 km) 178 (111 g/km) 9/7
SULEV II
6.6
Prius v (ZVW41) 2012 44 mpg (5.3 L/100 km) 40 mpg (5.9 L/100 km) 212 (132 g/km) 8/7
LEV-II SULEV
7.8
Prius c (NHP10) 2012 53 mpg (4.4 L/100 km) 46 mpg (5.1 L/100 km) 178 (111 g/km) NA 6.6
Prius Plug-in Hybrid
(ZVW35)
2012 Gasoline equivalent
in EV mode
(blended operation)
Hybrid mode
(combined)
133 (82 g/km) All-electric range
(blended mode)
95 mpg-e (2.5 L/100 km) 50 mpg (4.7 L/100 km) 11 mi (18 km)
Japan

The following table presents fuel economy performance and carbon emissions for all Prius family models sold in Japan since 1997. The ratings are presented for both, the current official 10-15 mode cycle test and the new JC08 test designed for Japan’s new standards that goes into effect in 2015, but it is already being by several car manufacturers for new cars. The Prius 2nd generation became the first car to meet Japan’s new 2015 Fuel Economy Standards measured under the JC08 test.

Fuel economy and CO2emissions comparison
among Prius family models sold in the Japan (years 1997-2012)
Vehicle Production
Year
Official
10-15 Mode Test
(km per litre)
New
JC08 Test
(km per litre)
Tailpipe
emissions
(grams per km CO2)
10-15 Mode Test
Tailpipe
emissions
(grams per km CO2)
JC08 Test
Prius 1st gen (NHW10) 1997 - 2001 28 km/L (66 mpg) na na na
Prius 1st gen (NHW11) 2001 - 2003 29 km/L (68 mpg) na na na
Prius 2nd gen (XW20) 2004 - 2009 35.5 km/L (84 mpg) 29.6 km/L (70 mpg) 65 78
Prius 3rd gen (XW30) 2010 - 2012 38 km/L (89 mpg) 32.6 km/L (77 mpg) 61 71
Prius α (ZVW40) 2011 31 km/L (73 mpg) 26.2 km/L (62 mpg) 75 89
Toyota Aqua (NHP10) 2012 40 km/L (94 mpg) 35.4 km/L (83 mpg) na na
Prius Plug-in Hybrid
(ZVW35)
2012 Gasoline equivalent
in EV mode
(blended operation)
Hybrid mode
(charge-sustaining)
All-electric range
(blended mode)
EV Mode
JC08 Test
(grams per km CO2)
61 km/L (140 mpg) 31.6 km/L (74 mpg) 26.4 km (16.4 mi) 38

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