How many miles does car last?

How do you correctly write the sentences? Do you know what I mean?

a A car on average has about 400,000 miles on it before it dies with good maintenance.
b Motor bikes don't have the same mileage on them. They last about 150,000 miles.

c How many miles can you put on a motorcycle?
d How many miles does a motorcycle last?
e How many miles can I get out of my motorcycle?

f This car has another few months to live. It has another 5000 miles on it. It is 20 years old. It's about time it died.

g Both sets have a few thousand miles left on the tires.