After the American Council for an Energy Efficient Economy (ECEEE) declared the Toyota Prius c the Greenest Vehicle, yet another study came to the same conclusion. Automotive Science Group (ASG) conducted a study called Life-Cycle Assessment Across Model Year 2013, which compared over 1,400 models across all vehicle categories apart from pick-ups. And in a world where performance is not measured only in horsepower, top speed and acceleration times, but by fuel efficiency and environment impact as well, Toyota ranked at top of the charts, especially the Prius c model, which was declared the best compact car available to buy now.