U.S. Department of Energy - Energy Efficiency and Renewable Energy

Vehicle Technologies Program

Fact #268: May 19, 2003
New Hybrids Getting Better Fuel Economy

The model year (MY) 2004 Toyota Prius, which will arrive in dealer showrooms this fall, has a combined EPA fuel economy rating of 55 miles per gallon (mpg), which is 7 mpg higher than the MY 2003 Prius. The new Prius, which is classified as a midsize car, is also larger than the older model, with increased height, width, length, wheelbase, and weight.

Comparison of MY 2003 versus MY 2004 Toyota Prius
Category	2003 Prius	2004 Prius
EPA Size Class	Compact	Midsize
Wheelbase (inches)	100.4	106
Length (inches)	169.6	175
Width (inches)	66.7	68
Height (inches)	57.6	58.6
Curb Weight (pounds)	2,765	2,855
Coefficient of Drag	0.29	0.26
Net Horsepower	98	106
Combined MPG	48	55
Emissions Rating	SULEV	SULEV
Source: These data come from a combination of Ward's Automotive News, April 21, 2003; Ward's Automotive Reports, April 21, 2003, and the Toyota Prius Web site.

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