Could you make Greece in 6h @12gph LOP from the UK in a Cirrus? I don't think so!
I ask myself why you would want to do that to yourself? Next time do stop for a good lunch half way old chap
There is no such thing as a perfect light aircraft - and if nothing else this thread proves it. There are things a Cirrus does well and there are things a 42 does better (like having an extra engine, if I had been in a Mooney last year instead of a 42 I would have been in a muddy field I suspect).