You can track your stolen car only through your tracking company. The tracking companies usually install GPS trackers that allow them to recover the vehicle. However, you should also understand that modern thieves are now using Relay Attacks and Signal Jammers. The latter blocks the signal from the tracking device, hindering a warning being alarmed during the theft. Once a car is stolen and reported to the UK Police, the authority registers it in the Police National Computer (PNC). It may also get marked on Motor Insurance Anti-Fraud Theft Register (MIAFTR) database. To query the PNC and MIAFTR, you need to run a stolen vehicle check.