A Mt Wellington resident Juan Lopez said his new 2013 Nissan Sylphy, which he'd only bought on Friday, was completely written off.
The car, which he paid $17,000 for, was removed after the crash.
His flatmate, Jesus Lizarraga also had his $14,000 Mazda damaged in the incident.
"We woke up to a bang and looked out of the window, then saw smoke coming from the driver's car. We heard voices and screaming. There were two cars, one hit a tree outside and the other smashed into the wall outside the kitchen," said Lopez.