 Despite the 500's name, which originally corresponded to its engine displacement, the lowest displacement is 1242 cc with 69 metric horsepower (PS), notably larger and more powerful than both the original 500"1957-1975" and the Cinquecento"1991–1998".A smaller, turbocharged two-cylinder Twinair engine with 85 PS was later unveiled at the 2010 Geneva Motor Show, entering production the following year.The TwinAir received the Best New Engine Award for 2011 and was marketed the "world's greenest petrol engine," based on official Euro test cycle data for emissions and fuel consumption.