I think you are both right. In Europe 55 (90 km/h) saves lifes, with some exceptions. Highways are rarely wide and straight, and they are packed with traffic. I

I think you are both right. In Europe 55 (90 km/h) saves lifes, with some exceptions. Highways are rarely wide and straight, and they are packed with traffic. I cannot imagine a truck happily cruising at 120 km/h here. Also we pay higher gas prices, no way a truck is profitable cruising at 120 km/h.