"Although the car has been impounded, police are still seeking information about the vehicle and its movements on Friday," Ms Perks said.
Police had earlier said they had not ruled out further arrests as the investigation continued.
Power was restored about five hours after the crash.
Meanwhile, the three men charged with attempted murder following the shooting have been remanded in custody to re-appear in the Rotorua High Court on October 2. The trio, aged 21, 29 and 52, were granted interim name suppression when they appeared in Whakatane District Court on Saturday.
The two victims of the shooting, aged 38 and 48, remain in critical condition in Waikato Hospital where they were airlifted about 7am on Friday.
After the shooting, armed police searched a number of Kawerau properties including homes on Valley Rd, Galway St and Sewell St.
Acting Area Commander Detective Senior Sergeant Greg Standen said the Kawerau community would hold vital information about the incident.
He urged anyone with any information to contact Kawerau Police on (07) 308 5255 or anonymously through Crimestoppers on 0800 555111.