Track days are supposed to be fun. Less fun is what happened to this BMW E36. The driver didn’t remove a can of WD-40 from the trunk, it hit the exposed battery, exploded, and then set the car on fire.

It is, at least, a morbid reminder to clear out your car before hitting the track, which the driver of this BMW didn’t do in this video posted to on Sunday:

According to the Facebook caption and the comments left by Clipping Point, after the can exploded on the battery and set the car on fire, the people in the video had trouble flagging down someone for help as they parked near a wall on the track, leading to a delayed response by the track workers.

According to the posts, the guy in shorts is not the owner of the car. By the time they managed to extinguish the fire, it had already spread to the back left taillight, and I imagine, burned through most of whatever was in the trunk.

Also, as one of the commenters on the video pointed out, it doesn’t hurt to keep a secured extinguisher in the car, just in case.

(H/T to Paulo!)