1.6 liter Honda i-dtec 78 MpG
 

Cool.

Too bad it will never come to North America.

This would be cool.

That's 78 mpg US on the NEDC cycle, which is a lot harder to beat than the EPA numbers.

While I can see the attraction of diesels in the US, they're NOT the solution.
They just bring along other issues.
Expensive ones, both in maintenance and public health.

They're still better than hybrids...

workaround ideas to discuss among friends: Diesels: energy-efficiency doesn't need excessive complexity