I’ve no experience of car transporters but do be very aware of your height at all times, but all this 16’5" stuff with cars hanging off of a roof rack in front of your cab is gone.
So long as you have all papers for vehicle, load and yourself all should be ok. Breath in, and hunch up your shoulders at the peages and the truck will go through. Plan your route before turning on your satnav then see if it suggests summit different. If you’re on a small wheeled outfit remember to use engine braking. You’ll be meeting some proper slopes which will warm up your brakes if you’re not careful.
If on cards rather than tags you’ll be scrambling across the cab to pay (assuming RHD). Don’t follow other trucks through the auto lanes for tags.
Once you’ve got past the first couple of trips all will be easy. Better facilities roads etc on the whole. Enjoy!
Edit. International work equals 4metres height.
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