Welcome to the forum, you have been given incorrect information.
Read the GLC clonking thread for in depth information.
Firstly the ISSUE is NOT treated as a warranty claim, it is more of a goodwill gesture by MB that they are changing the the tyres to all seasons.
Assume your car will come with the standard 19 inch wheels, the same as mine. There are NO all weather tyres available for the GLC43 in 19 or 20 inch wheels , only available in 21 inch. I have been trying to sort this out since last March when I collected the car, have reported it to the motoring ombudsman and I am awaiting their decision.
The intelligent lights are brilliant, have to be seen working to understand how good they are.
Can you please add your location to your profile, it helps when people answer your queries, I knew you were in the UK from your post as you mention 67 plate but wouldn't be aware in the future.
2017 GLC AMG43 premium plus, night pack, leather, intel lights, 360 camera, side steps.