Winter driving & salt is all about preparation & effort.

Spray around anything you can see 'bare' (probably engine bay area mostly, and steering arm ends/inner) with any of the proprietary products such as WD-40, ACF-50 etc etc.

Whey get home from a really salty trip, use a hose sprinkler all over & pointing upwards underneath. Blow dry or wipe, and put car away in a (ideally) heated and draughty or ventilated storage area.

It's not going to fall apart or melt, but you'll be wanting to cherish it I'm sure..!

It's not rocket science, just elbow grease and some prep.

There will be more better days than bad over winter, so just drive as it suits.

Howzat?

Steve