This is the 981st most frequent Swedish word.
max
The Swedish word "max" means "maximum" in English.
Here, 'max' is used as a limit or maximum constraint.
Jag vill köpa max tre böcker idag.
I want to buy a maximum of three books today.
In this context, 'max' (as part of 'maxhastighet') refers to an extreme or top intensity, specifically the fastest allowed speed.
De körde i maxhastighet på motorvägen.
They drove at maximum speed on the highway.
In this sentence, 'Max' is a proper noun and functions as a name.