The Honda Insight has been named Green Car of the Year 2009 by the Environmental Transport Association (ETA).

The least green car was found to be the 8-litre Dodge SRT-10 sports car.

The ETA examined over 1,300 models of car currently on sale in Britain and compared their power, emissions, fuel efficiency and even the amount of noise they produce.

A searchable database of the results and full details on each car can be seen at www.greencarawards.co.uk

The results are

Greenest

  • Greenest car overall: Honda Insight 1.3 IMA ES (101g/km)
  • Large Family - BMW 3 Series 320d with particulate filter (144g/km)
  • Supermini - Toyota Yaris 1.4 D-4-D 6-speed (109g/km)
  • Small Family - Honda Insight 1.3 IMA ES (101g/km)
  • City - Toyota iQ 1.0 VVT-i (99g/km)
  • Sports - Vauxhall Tigra 1.3CDTi 16v (124g/km)
  • MPV - Ford S-Max 1.8 Duratorq TDCi (164g/km)
  • Small MPV - Renault Modus 1.5 dCi 86 Quickshift 5 (119g/km)
  • Executive - BMW 5 Series 520d saloon with particulate filter (136g/km)
  • Off road - SubaruOutback AWD (153g/km
  • Luxury - Jaguar XJ 2.7L Diesel Saloon (209g/km)

Least green

  • Worst car overall: Dodge SRT-10 (488g/km)
  • Large Family - BMW M3 (309g/km)
  • Supermini - Renault Clio Renault Sport 200 (195g/km)
  • Small Family - Volkswagen Golf R32 4Motion (255g/km)
  • City - Ford Ka, Post 2006 1.6 Duratec Sportka (182g/km)
  • Sports - Dodge SRT-10 (488g/km)
  • MPV - Mercedes  R-Class R63 AMG (387g/km)
  • Small MPV - Mercedes Viano 3.5 (284g/km)
  • Executive - Cadillac CTS-V (350g/km)
  • Off road - Cadillac Escalade 6.2 V8 (383g/km)
  • Luxury - Bentley Brooklands Coupé (465g/km)

"The discrepancy between the greenest and the least green cars in Britain today is striking, but the market is changing and a combination of consumer pressure alongside government leadership will result in an increasing choice of environmentally-sound cars," Andrew Davis, director at the Environmental Transport Association, said.

"The big problem is not the Dodge SRT-10s and Lamborghinis because there are not many of them on the road," explains Andrew Davis, director of the ETA.

"The concern is that people are continuing to buy cars that are much too big for their real needs. "

The popularity of large 4x4s like the Porsche Cayenne, which is many times more damaging to the environment than for example a BMW 320d, winner in the Large Family Car category, is already on the decrease.

"With the increasing costs of motoring and the threat to the environment there has never been a more important time to choose greener cars."