I wonder why the choice of these two planes.
They are not obviously similar.
The Cirrus is made by about the only recent success story in GA and is therefore a "safe bet" for a long range tourer.
The DA40 (avgas version) is considerably slower, considerably cheaper to run, considerably less capable regarding weather (compare the operating ceilings).
For VFR (which is itself pretty limited for long range European touring, although a clever instrument-capable pilot with a bit of time to play with can go suprisingly far under "VFR") both will do the job.
Personally, I would go for a nice 2002 TB20GT
Flies nicer than an SR22, in my view, and equally capable against weather, and has a longer range.
When it comes to safe bets however, there is also the Cessna 400. I don't think Cessna will go bust, and I don't think they will drop this plane. But Diamond might just possibly go bust, if they don't get their engine situation sorted.