In this case, it would destroy that myth by saying that expensive diesel cars are also a way to get fuel efficiency. An imported version of their car would cos

In this case, it would destroy that myth by saying that expensive diesel cars are also a way to get fuel efficiency. An imported version of their car would cost slightly more than a Prius (arguably the iconic hybrid) in direct outlays. Plus, with diesel being more expensive than gasoline, you could well have a more expensive car in the long run. If the fuel costs 10-20% more, you need to get 10-20% better fuel efficiency. Assuming Prius mileages around 50 mpg, you can do this, but only barely, and that's assuming the relative price of diesel stays the same.