Question

give me the right answer is or was?

is this your car? the police officer said to the man

the police officer asked the man if it is/was your car​

Answer 1

Answer:

The police officer asked the man if it was his car.

Answer 2

Answer:

the police officer asked the man if it was his car

Explanation:

you used the past form of ask so ultimately you have write the whole sentence in past form