Does road salt affect modern cars?

[RacerMDR]

I remember back in the day, things that I used to own people would say that the salt on the road in winter destroys the car and bikes for that matter.

What about modern cars - just driven a few hundred miles from up North, my modern car is covered in that nasty salt residue.

Should I be worried? Even on the alloys?

My choice was put it away caked in salt and nicely dry

or

wash it in the dark, minus 3 and put it away wet having done half a job

thoughts?