Fuel economy in automobiles in the context of "Hybrid electric vehicle"

A scooter or motor scooter, is a motorcycle with an underbone or step-through frame, a seat, a transmission that shifts without the operator having to operate a clutch lever, a platform for their feet, and with a method of operation that emphasizes comfort and fuel economy. Elements of scooter design were present in some of the earliest motorcycles, and motor scooters have been made since at least 1914. More recently, scooters have evolved to include scooters exceeding 250cc classified as Maxi-scooters.

The global popularity of motor scooters dates from the post-World War II introductions of the Vespa and Lambretta models in Italy. These scooters were intended to provide economical personal transportation (engines from 50 to 150 cc or 3.1 to 9.2 cu in). The original layout is still widely used in this application. Maxi-scooters, with larger engines from 200 to 850 cc (12 to 52 cu in) have been developed for Western markets.

The National Highway Traffic Safety Administration (NHTSA /ˈnɪtsə/ NITS-ə) is an agency of the U.S. federal government, part of the Department of Transportation, focused on automobile safety regulations.

NHTSA is charged with writing and enforcing Federal Motor Vehicle Safety Standards (FMVSS), regulations for motor vehicle theft resistance, and fuel economy, as part of the Corporate Average Fuel Economy (CAFE) system. FMVSS 209 was the first standard to become effective on March 1, 1967. NHTSA licenses vehicle manufacturers and importers, allows or blocks the import of vehicles and safety-regulated vehicle parts, administers the vehicle identification number (VIN) system, develops the crash test dummies used in U.S. safety testing as well as the test protocols themselves, and provides vehicle insurance cost information. The agency has asserted preemptive regulatory authority over greenhouse gas emissions, but this has been disputed by state regulatory agencies such as the California Air Resources Board.

The 2008–2010 automotive industry crisis formed part of the 2008 financial crisis and the resulting Great Recession. The crisis affected European and Asian automobile manufacturers, but it was primarily felt in the American automobile manufacturing industry. The downturn also affected Canada by virtue of the Automotive Products Trade Agreement.

The automotive industry was weakened by a substantial increase in the prices of automotive fuels linked to the 2003–2008 energy crisis which discouraged purchases of sport utility vehicles (SUVs) and pickup trucks which have low fuel economy. The popularity and relatively high profit margins of these vehicles had encouraged the American "Big Three" automakers, General Motors, Ford, and Chrysler to make them their primary focus. With fewer fuel-efficient models to offer to consumers, sales began to slide. By 2008, the situation had turned critical as the 2008 financial crisis placed pressure on the prices of raw materials.