Top 10 low emission cars from around the world

With the United Nations warning against increased levels of CO2 in the atmosphere (400 parts per million in 2015), here's a list of 10 'green' cars from around the world.
1 / 10

Vauxhall Ampera: The primarily electric car has a small 1.4-litre petrol engine along with a low-humming electric motor.

2 / 10

Mercedes-Benz C350e: The luxury petrol hybrid sedan has CO2 emissions of 48 g/km and a fuel economy of 101mpg.

3 / 10

Volvo XC90: The car has diesel, petrol and plug-in petrol versions with CO2 emissions of 149g/km.

4 / 10

BMW i3: The urban electric car is BMW's first zero emissions mass-produced vehicle.

5 / 10

Ford Fiesta ECOnetic: One of UK's greenest cars is priced at a steep 15,595 UK Pounds.

6 / 10

Mahindra eVerito: The fully electric micro-car is available in 26 countries.

7 / 10

Toyota Prius: The hybrid electric hatchback is among the cleanest vehicles sold in the US on the basis of smog-forming emissions.

8 / 10

Honda Civic Hybrid: Equipped with a hybrid electric powertrain, the car has CO2 emissions of 116g/km.

9 / 10

Maruti Suzuki Ciaz SHVS: The mid-size sedan, which was launched in 2014, is one of India's most fuel-efficient cars.

10 / 10

Hyundai i20 Blue is one of the cleanest combustion-engined cars on sale.