The Fiat group has topped a chart showing car brands that have emerged closest to Europe Union's fuel-efficiency goals.

All of Europe’s top twenty brands improved their emissions in 2010 compared to 2009, with Fiat yet again recording the lowest average emissions down 4.7 g/km to 123.1 g/km, auto information group JATO said in a report released on Monday.

The overall target for all new cars in Europe, as defined by EU regulation, is 130g/km for 2015. The regulation provides a calculation defining an individual target for each manufacturer group in proportion to the average kerb weight of its cars.

Fiat Group recorded the lowest average emissions of 125.9 g/km, while Toyota is the closest group to meeting its target based on the analysis of 2010, the report said.

Following are the top ten most economical car manufacturers in Europe.

FIAT
Rank by Average CO2 (g/km) - 1Average CO2 (g/km) in 2010 - 125. 9Targeted CO2 (g/km) in 2015 - 116.1 REUTERS
TOYOTA
Rank by Average CO2 (g/km) - 2Average CO2 (g/km) in 2010 - 130.00Targeted CO2 (g/km) in 2015 - 124.8 REUTERS
PSA
Rank by Average CO2 (g/km) - 3Average CO2 (g/km) in 2010 - 131.6Targeted CO2 (g/km) in 2015 - 125.2 REUTERS
RENAULT
Rank by Average CO2 (g/km) - 4Average CO2 (g/km) in 2010 - 136.3Targeted CO2 (g/km) in 2015 - 123.4 REUTERS
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Rank by Average CO2 (g/km) - 5Average CO2 (g/km) in 2010 - 136.9Targeted CO2 (g/km) in 2015 - 125.3 REUTERS
SUZUKI
Rank by Average CO2 (g/km) - 6Average CO2 (g/km) in 2010 - 137.3Targeted CO2 (g/km) in 2015 - 117.5 REUTERS
HYUNDAI
Rank by Average CO2 (g/km) - 7Average CO2 (g/km) in 2010 - 138.6Targeted CO2 (g/km) in 2015 - 125.4 REUTERS
GENERAL MOTORS
Rank by Average CO2 (g/km) - 8Average CO2 (g/km) in 2010 - 139.8Targeted CO2 (g/km) in 2015 - 127.5 REUTERS
VOLKSWAGEN
Rank by Average CO2 (g/km) - 9Average CO2 (g/km) in 2010 - 142. 5Targeted CO2 (g/km) in 2015 - 139.8 REUTERS
Honda
Honda is a Japanese-based multinational corporation known for its automobiles and motorcycles. The brand has been the world’s largest of manufacturer of motorcycles since 1959, as well as the largest producer of internal combustion engines (as measured by volume), churning out more than 14 million such units every year. The company’s headquarters are in Minato and, in 2011, its brand value was $14,182 million. REUTERS
European union Fuel efficiency Toyota European union