Neighbouring Liquorland owner Manish Mittal was in his store when he heard loud bangs, tyre screeches and a car engine revving.
"I went outside to check and saw the car pushed into the door.
"A car came speeding, first it hit one car, then it hit the black car which was parked in front of the hairdresser shop.
"There were couple of girls inside the black car at that time when the driver hit them.
"The black car was pushed into the right side of the front of the store, glass shattered. The cars are still here."
His son called emergency services, Mittal said.
"It is the first for us, a police bike, two officers, one ambulance and fire truck are here at the moment."
A police spokesperson said the crash, on Melanesia Rd, Kohimarama, involved three vehicles and one was shunted into a building.
No injuries were reported.
A St John spokesperson said one ambulance attended the scene, assessed and treated two patients with moderate injuries.