Yeah, I thought about the DA42, but the Cirrus would have a big speed
advantage, hypothetically. The Diamond site says 12.5gph at 80% power
which I think gives you around 170kts based on their range circle. I
couldn't scroll down to read the whole spec page so I don't know what
they're advertising for cruise speed of the diesel engined plane. I
didn't see anything on Diamond's page about the IO-360 engined DA42
either. That is a cool looking plane though.