A car with two elderly occupants crashed into the window of Countdown on Courtenay St at 4.30pm on Saturday.
Witnesses said the car drove into the New Plymouth supermarket's carpark from Leach St and over a traffic island before it hit the side of the building.
The elderly male and female occupants of the car were taken to hospital in an unknown condition, a police communications spokesman said.
- Taranaki Daily News
The lower drink-driving limits from December are:Related story: Drink-drive limits lowered