How do you test an AWD system is correctly working?

How do I test an AWD system on a test drive?

Do I have to use beam deflectors on my Audi A4?

I have an Audi A4 Avant (2012) that I drive regularly to France and use the beam deflectors. But I was wondering, is it possible to adjust the lights on the car so I don't have to use the deflectors?

Driving aboard - do I need to carry a spare bulb kit?

There seems to be confusing feedback about the need to carry a spare bulb kit when driving in Spain. I have a 2014 Honda CR-V and there appears to be no bulb kit for this vehicle on the market. Does that...

Do I need to adjust my car's headlights for driving in Europe?

The handbook for my 2014 Mercedes-Benz B-Class alludes that the headlights are aligned centrally and therefore do not need any adjustment for use on the continent; however, I can't get a direct answer...