The comparison strikes a slightly discordant note because the Lancair IV is a homebuilt, none of them are exactly the same, and the Cirrus is a production aircraft with a milder reputation. They don't seem directly comparable to me.
For what its worth, perhaps not much, I've flown in a Lancair IV with a very skilled owner/pilot, flown it a bit right seat and watched. I was impressed that its not a plane for everybody. 35 lb/sf wing loading, everything by the book, not a casual thing to operate, and for me not a particularly enjoyable thing. The airplane has a reputation, and I think there's a reason for that - its a single focus hot rod for the experienced and committed. I met another guy who had gone through an emergency depressurization with his IV-P. It was a story but he survived.
Conversely, the Cirrus is widespread, in volume production, 50% more wing for every pound carried, with training and backup. If you have the money and time, go for it.
Last edited by Silvaire1; 23rd Aug 2013 at 04:57.