"The cars on this motorway move in some direction towards Lake Balaton."

Translation: Az autók az autópályán valamerre a Balaton felé haladnak.

[MitjaSterman]

"This motorway" is not "az autópályán "

[Hulk014]

You're right. It means "Ezen az autópályán".

[smurr22]

Why this ambiguous wording? One does not know where the road goes? I cannot say that this sentence is grammatically incorrect, but I would never say this in English.

[Ishana92]

exactly. It would be either move towards lake balaton or move in that/this direction

[ion1122]

Perhaps more elegant English would be: 'The cars on the motorway move in the direction of Lake Balaton'.

In other words, 'in some direction towards' = 'in the direction of'