When Andrew's car was damaged in a hit and run, a very helpful schoolgirl solved the mystery.

Andrew Sipowicz’s red Ford Mustang was his dream car, so when he discovered it had been badly damaged in a hit-and-run he was gutted.

On Monday, a school bus in Buffalo, New York smashed into one side of the car and the driver drove away, leaving his front driver’s side badly dented and scratched.

Upon discovering this, Andrew noticed a piece of paper under his windscreen wiper. It wasn’t a note from the driver, but instead a very helpful child.

Written in neat, child-like handwriting it read: “If your wondering what happen to your car. Bus: 449 hit your car.

“It stops here everyday to drop me off at 5pm.”

The note then gave more details about how the incident happened as well as a pretty damn good drawing of the bus in question, with a smiling driver and a couple of shocked children with their hands against the glass (or in the air… it’s hard to tell the exact action in 2D).

The child then identified herself as a sixth grader (FYI: kids in sixth grade are usually 11 or 12) at Houghton Academy.

Following his discovery, Andrew shared the note and a photo of the damage to Twitter, and it quickly went viral. It now has more than 1.2million likes.

Shoutout to the anonymous 6th grader for saving me a couple thousand (Bus not drawn to scale) pic.twitter.com/7aNK10xSwX

— Andrew Sipowicz (@Andrew_Sipowicz) November 20, 2018

Because the internet is a magical place, one of the student's teachers saw the tweet and responded.

Proud teacher moment. One of my students wasn't afraid to be a 'snitch' and did the good deed. NO THANKSGIVING HOMEWORK! https://t.co/Wu9IG8Q3bf

— Nick Kiser (@Kiser18) November 21, 2018

According to The Buffalo News, Andrew called the company that operates the school bus and it will cover the damage and provide a rental vehicle until his Mustang is repaired. It is also moving to "terminate the driver", according to a company spokesperson.

In a update posted to Twitter, Andrew said he had tracked down the child and was in the process of "finding a way to reward her actions". According to the BBC, Andrew plans to visit the school next week to thank her.

"I just want to thank her so much for being so courageous and doing the right thing when it would have been easier to go home and forget the whole thing," he explained.