United States: The minimum age to own a car in the United States varies by state. In most states, the minimum age is 18, but in some states, it may be as low as 16.
Canada: The minimum age to own a car in Canada is 16.
United Kingdom: The minimum age to own a car in the United Kingdom is 17.
Australia: The minimum age to own a car in Australia is 18.
New Zealand: The minimum age to own a car in New Zealand is 18.
Germany: The minimum age to own a car in Germany is 18.
France: The minimum age to own a car in France is 18.
Italy: The minimum age to own a car in Italy is 18.
Spain: The minimum age to own a car in Spain is 18.
Japan: The minimum age to own a car in Japan is 18.
China: The minimum age to own a car in China is 18.
It is important to note that these are just the minimum ages to own a car. In most jurisdictions, there are additional requirements, such as obtaining a driver's license and registering the car.