BMW EfficientDynamics isn’t a mere categorical name to impress the economy craving consumers and it does manage to attain a very high fuel economy with very low emission numbers as reported by famous UK motoring journo Tom Ford.

Tom drove a 320d on a full tank from UK to Munich and back and he managed to travel a whopping 1013 miles. Calculate those numbers a little better and you get 68.9 mpg and do not miss out on the fact that Tom also reported CO2 emissions of only 109g/km. Tom did drive carefully but he mentioned that he wasn’t conscious of the economy run factor and there were times when he even bagged 75.9mpg. He was thoroughly impressed by the 320d as he mentioned that the dubbing EfficientDynamics isn’t merely efficient by its name, only.

Just to revive your memory, Fisker Karma is the plug-in hybrid sedan from Fisker Automotive which was fist showcased at the Laguna Seca during the Pebble Beach Concours. At that point the fuel efficiency figures of the luxury plug-in hybrid were not available but now the Society of Automotive Engineers (SAE) do have the results for us. As per the SAE rating the Fisker Karma manages 67 miles per gallon which is pretty impressive.

The numbers look even better when you consider that the sedan churns 403 horsepower and sprints 0 to 60 mph in just 6 seconds. As far as the emissions are concerned the Karma is pretty neat, emitting 83 grams of CO2 per kilometer. The high efficiency numbers will not be a possibility when you intend to run the car on a performance mode, therefore a lot depends on your preferences as far as the efficiency is concerned. [via MotorAuthority]