30,000,000
100 cars If each car has 4 tyres 400/4= 100
people can't afford their cars
There are a large number of used cars for sale in Florida because there is a dense population of people in Florida. Many of these people move from other states and downsize their vehicles and homes in Florida.
I would not have a clue other than to say it is millions.
Cars are used for driving people around and you dont have to walk.
Look in your local paper or on Craig's list. There are many people trying to sell their cars cheap.
Edmunds.com has all of the prices for used cars, which may be a good tool for you. Many people find used cars on Craigslist or on www.usedcars.com or www.autotrader.com.
People 30 years old often drive cars. In the 1930's some people drove cars but many didn't own them. In cities they used street cars. Trains were used much more than today. Rural areas still used some horses.
RC Cars are used in many ways, mostly entertainment. People race, perform stunts and just drive them around. They are very fun. RC Cars can also be used to observe effects and get an idea on how certain things effect full scale cars.
Yes, Edmunds online does report on used cars. In fact, it gives an overview of each of the used cars that it has even though the information is not as comprehensive as CarMax.
Yes Many sites have used cars for auction,Ebay has thousands of used cars for auction.