"Végre megvettük az autót."

Translation: Finally we bought the car.

[SedatKlc]

what is the function of meg-?

[bdori]

Verbs with a definite object often get a prefix while verbs with an indefinite object usually don't get one.
"Végre megvettük az autót." = Finally we bought the car.
"Végre vettünk egy autót." = Finally we bought a car.

In this case, "meg-" doesn't change the meaning of the sentence. In other cases it can indicate that the action described by the verb has ended: "Megettem a csokit." = "I ate the chocolate (and nothing's left for you)."

[bnyugat]

Could we say: 'In the end we bought...' instead of 'finally'?

[Judit294350]

I suggested this. Maybe they will accept it.

[Martin101363]

As a native English speaker, I put "in the end" which means exactly the same as "finally" but was not accepted