The Fleet Alliance has seen their carbon levels decrease to 199g/km, with many corporate customers now specifying greener models for their own fleets. The average for 2014 was 118g/km across the FN50, with hybrid-powered cars now the most popular alternative fuel. As much as 20 per cent of all cars ordered across the 18,400-strong Fleet Alliance fleet were sub-100g/km of CO2, itself an increase of 14 per cent year-on-year.æ 77 per cent of the fleet had CO2 figures of less than 130g/km, compared to just 71 per cent at the end of 2014.æ Companies are increasingly turning to low carbon emitting vehicles. In the league table of the cleanest cars, the top ten all had emissions of lower than 100g/km.æ The greenest car in the fleet was the Mitsubishi Outlander PHEV, with emissions of 48g/km.æ The Outlander is now the most popular ULEV in the UK, with 11,681 vehicles sold last year: an increase in sales of 118 per cent compared to 2014. The Lexus CT Hybrid was the second most carbon efficient vehicle, with emissions of 82g/km.æ Lexus itself now has a company car policy to encourage employees to consider greener alternatives.æ Third and fourth in the emissions list were both Peugeot models: the 208 (93g/km) and the 308 (94g/km). During the previous 18 months, the Fleet Alliance has continually advised clients on the importance of laying out fleet policies focused on encouraging take-up of low carbon-emitting cars.æ As well as the obvious environmental benefits, fleets can also make substantial savings on tax, National Insurance and fuel costs. A number of green initiatives have also been introduced by the Alliance, including an EV awareness programme as well as two new examples of the Nissan Leaf for testing and review purposes. The Audi A3 remained the best overall seller in the Fleet Alliance charts, followed by the Volkswagen Passat and the Ford Mondeo. Martin Brown, managing director of the Fleet Alliance, said: 'Carbon emissions are falling across our entire fleet and last year as a whole they fell to an average of 119g/km, the lowest we have seen so far. 'We expect this to fall further in 2016 as more clients switch to greener cars, not only cutting their carbon footprints but reducing their tax and fuel bills, too. 'At the same time, we are seeing many newer green models coming through from the vehicle manufacturers with ever-lower carbon emissions across all popular model ranges. 'The fact that the cleanest two models on our fleet are both hybrids is in line with the national trend which has seen uptake of hybrid vehicles grow at a staggering rate in the last 12 months.î