When the Prius was first launched in the U.S. market in 2000, the world’s first mass-produced hybrid boasted of its 41 MPG combined (city/hwy). With a 117.5 lb. NI-MH battery pack and a curb weight of 2765 lbs., Toyota lead the industry into the hybrid era with this compact model. 18 years later, the Prius Two Eco is equipped with a lighter lithium Ion battery that achieves 56 MPG combined – a notable 15 MPG improvement.
To see what this improvement means in CO2 terms, ASG conducted a comparative life-cycle assessment, and found the 2000 Prius to hold 295 grams of CO2-e emissions per mile driven life-time (attributing CO2 emissions from raw material extraction, processing and manufacturing, through vehicle use with fuel inputs, to vehicle end-of-life). ASG found the 2018 Prius Eco to hold 226 grams of CO2-e emissions per mile driven life-time, a 23% reduction over the 2000 model and a significant stride without a full technology leap.
In ASG'S vehicle class awards, the 2018 Toyota Prius Eco was named a best all-around performer among all cars in the mid to large car segments, earning the BEST 5 ALL-AROUND PERFORMANCE honor. The BEST 5 ALL-AROUND PERFORMANCE honor distinguishes the 5 vehicles in each vehicle segment that achieve the highest combined environmental, social and economic performance ratings in ASG annual Automotive Performance Index (API) Study.