0 with so many cars that are so close that they are almost touching each other:
By eight o'clock the traffic was bumper to bumper.
1 with almost no space between one car and the next in a line of cars:
There is a continual passage of vehicles of all kinds, bumper to bumper—heavy goods lorries as well as saloon cars—passing my door in both directions.
I saw it estimated that if they were placed bumper to bumper they would stretch for 1,000 miles.
As aircraft land, passengers will realise that the snakes are millions of cars travelling bumper to bumper.
With traffic bumper to bumper along the main roads, residents seeking to emerge from the side roads in which they live find it virtually impossible to do so.
But the grill, the rooflines and details on the bonnet and boot made for an integrated design from bumper to bumper.
