The Cessna part is wrong, I can reach over 4000 m in one. The only problems are lack of pressurization and the quantity of fuel to burn to get there, not actual

The Cessna part is wrong, I can reach over 4000 m in one. The only problems are lack of pressurization and the quantity of fuel to burn to get there, not actually reaching it. In a good day (cold weather, air more dense) it can get even higher.