In the following weeks, an additional 30 vehicles were assigned to Silicon Valley groups and companies, including the University of California, Berkeley. Researchers at the Advanced Power and Energy Program at the University of California, Irvine, and the Institute of Transportation Studies at the University of California, Berkeley, began testing two specially made Priuses and analyzing driver behavior, study air quality and energy use. Five demonstrators were delivered to New York City, two were tested by the New York City Department of Transportation and three by the Port Authority of New York and New Jersey. U.S. Department of Energy's Clean Cities program. The demonstration program in Germany was conducted in Baden-Württemberg with ten demonstrator plug-ins and the corresponding dedicated charging infrastructure. The demonstration trial in the UK began in late June 2010 with a fleet of 20 demonstrator plug-ins. June 2012 in Europe. According to Toyota the Prius plug-in is expected to be rated in Europe at 2.10 L/100 km (112 mpg-US; 135 mpg-imp) equivalent, with CO2 emissions of 49 g/km (2.8 oz/mi). According to Toyota the Prius plug-in was expected to be rated at 2.10 L/100 km (112 mpg-US; 135 mpg-imp) and CO2 emissions of 49 g/km under the New European Driving Cycle (NEDC).
Under the JC08 Japanese test cycle the Prius PHV range is 26.4 km (16.4 miles), 3 km (1.9 miles) more than the 23.4 km (14.5 miles) achieved by the demonstrator. The production version of the Prius Plug-in has two key modifications from the demonstration units based on the data and customer feedback gathered. Lexus CT 200h with 290,800 units, and the Lexus ES 300h with 143,200 units. Croatia-based Rimac Automobili has planned only to make 150 units of its second design, the C-Two model, priced at $2.1 million each. The United States led sales with 42,345 first-generation units delivered through September 2016, when dealerships run out of stock. Boulder offered the opportunity of monitoring the performance of Toyota hybrid battery's first-generation lithium-ion battery at high altitude and under cold climate. The first-generation Toyota Prius Plug-in Hybrid has a maximum electric-only speed of 100 km/h (62 mph). The Eco mode is designed to maximize fuel savings for any driving conditions and modifies or smoothes out the electronic throttle control program to reduce throttle response, reducing the throttle opening to a maximum of 11.6%, and also modifies the operation of the air conditioning system.
The maximum speed in EV mode is 100 km/h (62 mph), or 85 km/h (53 mph) on European models. The EV mode is user-selectable and when running in this mode the hybrid engine control unit (ECU) operates the vehicle using only the larger motor-generator (MG2) if pre-determined parameters are satisfied, such as sufficient battery state of charge (SOC) and vehicle speed within EV mode range. The differential relates the rotation speed of the wheels to the rotation speeds of the engine and MG1, with MG1 used to absorb the difference between wheel and engine speed. Like the Hybrid Synergy Drive of the standard third-generation Prius, the plug-in has two high-output electric motors, one 60 kW (80 hp) unit (motor-generator 2, MG2) that mainly works to power the transaxle, and another smaller unit (motor-generator 1, MG1) rated at 42 kW (56 hp) that creates energy during regenerative braking and acts as a starter for the gasoline engine. The car was based on a third-generation Toyota Prius (model XW30) outfitted with a 4.4 kWh lithium-ion battery co-developed with Panasonic. The charge port location was moved from the front driver-side fender in the demonstration model based on input from the program participants. In August 2010 two demonstrators were delivered to be tested in San Francisco's municipal fleet as part of the demonstration program.
Xcel Energy's SmartGridCity program in Boulder, Colorado. The second rating is for all-electric operation with a range of 6 miles (10 km). The California Center for Sustainable Energy tested two demonstrators with 13 different drivers over seven weeks and reported an average combined fuel economy of 2.8 L/100 km (83 mpg-US; 100 mpg-imp) on an average round trip commute of 35 km (22 miles). San Diego Gas & Electric and the California Center for Sustainable Energy. The hybrid compact crossover sector has been a one-man show, with the Toyota RAV4 taking center stage for every performance, but that could change! The trial Prius Plug-in Hybrids will be available through leasing to public sector organizations and business users. Among the organizations that received the first Prius Plug-ins are Transport for London, the Government Car and Despatch Agency, the Metropolitan Police Service, News International and Sky. The City and the Urban Community of Strasbourg will leased five demonstrator plug-ins and also provided a subsidy to a local carsharing company to lease three demonstrators. In Japan, Toyota leased approximately 230 demonstrator plug-ins to government ministries, local governments selected for the Japanese Ministry of Economy, Trade and Industry's EV & PHV Towns program, corporations such, as electric power companies, and other entities.