A second stolen vehicle, a red Mazda MPV which is also believed to be linked to the investigation, was recovered after crashing as it fled from police on Monday, 26 May.
Although five teenagers from Auckland and Rotorua have been arrested and charged with a variety of unrelated offences, no one has yet been charged in relation to the robberies.
Police Ten-7 presenter Graham Bell has revisited the scene of the Jerams' Superette robbery with Detective Karin Staunton.
"Three little kids happened to be in the shop at the time and were terrified," says Graham Bell.
"It shows what cowardly thugs these offenders are.
People do get indignant about these crimes and they do care, and we want to do what we can to help."
Anyone with information is asked to contact Rotorua Police on (07) 348 0099.
Information can also be provided anonymously to the organisation Crimestoppers on 0800 555111.