Can you buy a V50? Recommended engine?

Dear Moose Community, at the moment drive a V40 1.8 with 85 kW, year 1998, and think about changing to a V50. Important for me: A better quality impression and an engine, which is still somewhat quiet even on more than 4000 tours. Is the V50 a real improvement to the V40? If so, which engine would you recommend? Do you not need a super-fast bullet but a car with which you can travel reasonably smoothly. Greetings from the far north