Driving with handbrake on for 9km!

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Wife told me she was driving the car with handbrake on for about 9km going about 40-60km/h to work this morning! I want cry now...

I hate to say this, but this is a BRAND NEW 2007 Toyota Hatchback! Yes that's right, one day old car!!! The car is only one friggin day old, I'm so mad right now I don't know what to say.

I just took the car out for a ride. It appeared normal braking is still okay, no weird noise or burning smell... I also parked the car on a hill (about 30 degree) and push to neutral and pulled the handbrake, I needed 4 clicks to stop the car completely from moving, with 3 clicks it still moved a bit, I don't know how strong our handbrake is designed for, is this still normal?

Hopefully everything is okay. Arrrgh but to have this happened on a brand new car that just got off dealership less than 24 hours ago... it really sucks!

Question, how bad could it have done to the rear drum brakes / brake lining? she said she didn't smell anything burning, but I still have concern whether it may have damaged the brakes or other parts of the car.

Has anyone had this mistake before? Is handbrake a separate brake system? Any Yaris expert help would be appreciated!!!