the average age of a vehicle on the road today is 7 years.
10.8 years in 2011.
62
12-15 yrs old
Do you mean when cars were first out? None. There was barely rules of the road and few cars. In Europe there were licences as early as 1880, but none list the legal driving age.
9.4 years old with 155k miles
28 MPG is pretty average for many cars on the road, so 31 MPG is good.
Deeper grooves improve traction for off road use but are noisy when on road use.
There have been changes to the speed limits in Britain for several reasons. The amount of cars on the road (which has increased dramatically), the age limit for driving which has changed because cars are cheaper and younger people can afford them and the types of cars that are on the road e.g 4X4, Vans, lorries, Super cars and standard cars. Cars have been developed more and more over the last hundred years which means they can go faster and faster due to better fuel consumption and fuel usage
road
No. Correlation studies cannot demonstrate ANY effects - positive or negative. They can only show that two (or more variables) move in the same or opposite dirctions. For example, my age is correlated with the number of cars on the road. But my age does not affect the number of cars, nor does the number of cars affect my age.
um... that's what road were made for... for cars to drive on. if you mean are cars aloud to drive anywhere else, no unless it's your property.
This number is not known. There are not as many cars on the road as in America due to the subway system and biking.