Looking for ways to keep fleet costs down? CO² emission levels should be a key consideration when comparing vehicle models - the lower the emissions, the lower the benefit in kind tax, whilst the environment will breathe a sigh of relief!

The latest engine technology means that CO² emissions are lower than ever before, but trawling through endless lists of car specs to find the top contenders is never an easy task. We've done the hard work for you and put together our countdown of the top ten low emission fleet cars.

10. Audi A3 Sportback 1.6TDI Ultra SE 110PS - 89g/km

Audi A3 Sportback
Audi just manages to get a spot in our list with their most environmentally friendly model - the A3 Sportback 1.6TDI Ultra SE. Offering CO² emissions of 89g/km, the efficiency programme in the Driver's Information System provides the driver with fuel saving tips, a gear change indicator and details of other vehicle functions that consume fuel, helping to achieve 83.1mpg. The Start-Stop system with energy recuperation further helps to reduce emissions and save fuel, whilst the A3 comes loaded with all the premium features you would expect with the Audi badge, including daytime running lights, adaptive brake lights and 5.8 inch QVGA colour display screen.

9. MINI Hatch 1.5 One D 3 Door - 89g/km


MINI's most economical offering comes in the shape of the One D 3 Door Hatch, producing 89g/km of CO² and achieving up to 91.1mpg. The MINIMALISM fuel saving package comes as standard, consisting of an Auto Start/Stop function, Brake Energy Regeneration and Shift Point Display, helping to increase economy whilst driving. For extra fleet-friendly features, add the Chili Pack for a multi-function steering wheel, MINI driving modes and cloth leather combination seats or the Media XL for an 8.8 inch screen for navigation and infotainment.

Wondering which MINI is best for you? Check out our blog.

8. Ford Focus 1.5 TDCi Style ECOnetic 105PS - 88g/km

Ford Focus

Offering a more economical version of the popular Ford Focus, the 1.5 TDCi Style ECOnetic produces CO² emissions of just 88g/km, whilst reaching 83mpg. The Style model includes 16" wheels, electric body coloured door mirrors and body coloured door handles, with safety coming in the form of Active Braking, Active City Stop, Active Park Assist, Lane Keeping Alert and Aid, Traffic Sign Recognition and Driver Alert. The Ford Sync 2 with voice control and touchscreen allows the driver to operate the infotainment system hands-free, whilst the paddle gearshift, heated steering wheel and LED daytime running lights can add a touch of luxury.

Watch our video review of the Ford Focus.

7. Citroen C4 Hatch 1.6 Blue HDi Feel 100 S&S - 86g/km

Citroen C4 Hatch
The C4 wins the CO2 race for Citroen, with the C4 Hatch 1.6 Blue HDi Feel 100 S&S producing 86g/km of CO². Achieving 85.6mpg with the help of stop and start technology and Gear Efficiency Indicator, the C4 combines space with economy. With a variety of storage facilities such as a drawer under the front passenger seat, rear door pockets and opening centre console, there is plenty of room for all those business bits and pieces. DAB radio with Bluetooth hands-free and USB port comes as standard, and safety features include Intelligent Traction Control, Hill Start Assist and ABS.

6. Kia Rio '1' 1.1 CRDi 74hp 1SG - 86g/km

Kia Rio

The Kia Rio '1' 1.1 CRDi 74hp 1SG produces an impressive 86g/km of CO² emissions, with a host of features to accompany its performance. The five door design encompasses features such as Bluetooth with music streaming, DAB radio, Electronic Stability Control and Vehicle Stability Management, steering wheel mounted controls, body coloured door mirrors and door handles and hill-start assist. Economy can reach 91.1mpg and colours range from an eye-catching Yellow Zest to a bright Urban Blue.

5. Vauxhall Corsa SRi 3-Door 1.3CDTi 95PS Start/Stop ecoFLEX - 85g/km

Vauxhall Corsa

Emitting just 85g/km of CO², the Vauxhall Corsa SRi 3-Door 1.3CDTi 95PS Start/Stop ecoFLEX achieves 88.3mpg. IntelliLink and leather steering wheel mounted audio controls come as standard, with sporty-look 16 inch black alloy wheels, sports seats, sports pedals, LED daytime running lights and a variety of exterior colours including solid, brilliant, metallic and pearlescent shades. From a safety angle, ABS and a tyre pressure monitoring system come as standard, whilst Advanced Park Assist and front and rear parking sensors can be added.

Watch our video review of the Vauxhall Corsa. Or if you're after a bit more loadspace, check out the Vauxhall Corsavan!

4. Ford Fiesta 1.5 Duratorq TDCi Style ECOnetic - 85g/km

Ford Fiesta

Ford makes its second appearance in our list with the Fiesta 1.5 Duratorq TDCi Style ECOnetic, producing CO² emissions of 85g/km with an economy of 91.1mpg. Key features include manual air conditioning, hill start assist, tyre pressure monitoring system, 15 inch wheel covers, Ford Easy-Fuel capless refuelling system and headlight courtesy display. The Fiesta also comes with the innovative MyKey, which allows each driver to tailor their individual car settings, such as speed limit reminders, maximum audio volume and deactivation of certain driver assistance features, all activated each time MyKey is used.

Or for a bit more loadspace, check out our video review of the Ford Fiesta Van.

3. Volkswagen Golf 1.6TDi 110PS BlueMotion - 85g/km

Volkswagen Golf
Thought the Volkswagen Golf would never be able to meet your emission dreams? Thanks to the BlueMotion technology now it can, producing CO² emissions of 85g/km - 15% less than the previous generation - and returning 88.3mpg. The figures are achieved by a variety of innovations including longer gear ratios, start/stop function with battery regeneration system and the 1.6 litre TDI 110 PS engine. Comfort isn't compromised however, with multifunction computer, Bluetooth telephone connectivity and Composition Media system with large colour touchscreen and DAB radio.

2. Renault Clio Expression+ dCi 90 Eco² Stop & Start - 83g/km

Renault Clio
The Renault Clio just misses the top spot with the Expression+ dCi 90 Eco² Stop & Start, producing CO² emissions of 83g/km. With a maximum speed of 112mph, Clio offers a mean-looking on the road presence thanks to the recently updated shape. The Expression+ includes features such as manual air conditioning, 16 inch alloy wheels, front fog lights and variable speed windscreen wipers. For safety, double optic headlights feature a See Me Home function, with emergency brake assist and Engine Smart Management.

1. Peugeot 308 1.6 Blue HDi Active 120 S&S - 82g/km

Peugeot 308

In at number one with the lowest CO² emissions of just 82g/km is the Peugeot 308 1.6 Blue HDi Active 120 S&S. The 308 plays host to Peugeot's latest generation of diesel engines; BlueHDi. Developed on the race track of Le Mans, BlueHDi uses a three stage cleansing process to reduce nitrogen oxides by up to 90% and eliminate 99.9% of particulates, resulting in the cleanest engine possible with fuel economy of up to 91mpg. Alongside the engine performance lie 16 inch alloy wheels, dual zone climate control, electric handbrake, rear parking sensors, Mistral Nappo leather trimmed steering wheel and gear knob, automatic headlights and windscreen wipers, 9.7 inch multifunction colour touchscreen and satellite navigation.