A motorway is a large road that is designed for fast and safe travel by cars and trucks. It usually has multiple lanes, is separated from other roads, and does not have things like traffic lights or intersections. Full definition
You can cruise roof - down on motorways at realistic speeds without significant buffeting, and when you run with the roof up you really wouldn't know you're in the Spider, such is its integrity. (evo.co.uk)
The vestigial aeroscreen maximises the intensity of the driving exprience, but fitting the optional (detachable) full - width windscreen allows you to cruise at motorway speeds with minimal buffeting. (evo.co.uk)
A full - length acoustic shield fitted beneath the roof reduces annoying road noise, making this one of the world's quietest cars when driving at motorway speeds. (carbuyer.co.uk)