seized vehicle because of accident by police

It is not only concerned with your vehicle if there is a crime, each and every pin has to be confiscated to establish that crime before the court.  After the production in court, one can get back the same from courts depending on the circumstances and role of that vehicle.  

Why "if" - is this not a realtime query?

Instead of posting your query on the basis of "ifs" and "but" you must be specific, so that some meaningful advise can be rendered by experts, who are obliging needy litigants.

If there is some problem / dispute is still persisting you may redraft and post it.

Sir,

  You told that you have met with an accident. You have not clearly informed whether you have filed FIR or filed by opposite party. Further the concerned police might have been given receipt of seized your vehicle. Without full information you   cannot expect approximate suggestions.

C. Shanmugam

MB 9841888978.