Driving in a luxury car means speed, but be aware of the speed limits while driving in a hire car, as you will be charged for any fines you might incur. The speed limit on motorways or dual carriageways is generally 70 km/h. Residential areas and around schools are where you need to be most vigilant; the speed limit is normally 20 km/h. Built-up and more open areas are between 30 km/h and 60 km/h. All speed limit changes are indicated by road signs, which are frequent in Glasgow. Search rental cars on KAYAK