It's the average. I'm not sure about the EU though. I know that gas prices are a lot lower in the US so there hasn't been a push to increase the average. Especially since one of our political parties fights to defend the rights of the oil companies to do whatever they want without limit. Back during the BP oil spill some Republicans wanted the President to apologize to BP for treating them bad despite the spill being their fault due to the safety standards being low. It's really disgusting.The standards were change a few years back. American car companies have to produce cars that get 54.5 miles per gallon by 2025. It's supposed to be 35.5 by next year.
We're also seeing some movement on electric cars like the Telsa and most of the well known companies are starting to put out electric models. So it is some progress, we just have a lot of idiots who want to fight it.
Isn't that 54.5 by 2025 the average mpg? But aren't many cars in the EU already past the 35.5 target set for the US next year and getting close to the US 2025 target? But perhaps some of that is down to the higher fuel prices in places like the EU so fuel economy becomes a selling point. For example using the current exchange rate between the GB£ and US$, average pump price per litre and using the US Gallon in US$ the pump price in the UK is ~US$6.20/gal
Well it wasn't just BP's fault, Transocean and Halliburton were also partially to blame. But I think perhaps you've hit the nail on the head whilst it isn't soley a US problem from an outside perpsective it's seems as if the US is deeply politically divided moreso than perhaps many other developed nations.