I love diesel cars, but it doesn't make sense to hae a small, sub-compact offered with a diesel in NA. The benefits wouldn;t really add up, and it'll prbably cost you mor to own it.
Unless gas goes up to $2 only larger cars benefit ecn with a diesel option...
a 1.3 4cyl Mazda in diesel might not sell well here...
the 6 Wagon, on the other hand....