It will do FL410 at gross weight in ISA conditions and FL360 at 250 kg below gross weight in ISA +20
It does but it takes 47 min (at 450kg below MTOW which represent a substantial amount of fuel/payload). I agree with you on the budget aircraft and I'm precisely doing this homework as some people seems to be convinced it can perform in the region. I don't really want to try the 1.8% engine-out climb gradient at 40° C...