If you have a GM vehicle equipped with the Performance Data Recorder (PDR), this might be your sign to start using it when you bring your car in for service. After the incident this past June involving a Chevrolet technician taking a customer’s C8 Corvette out for a 104-mph (167 km/h) joyride, a similar situation has has occurred, this time with street racing at speeds close to 150 mph (241 km/h)

The car was brought in to the dealership for an unknown, potentially serious engine noise that necessitated it be taken in on a tow truck. After the technician working on it resolved the issue, which apparently turned out to be a loose spark plug, he rightfully took it out for a test drive to make sure everything was in working order. However, what that technician didn’t know was that the car’s PDR was active, and it was recording the whole ordeal that followed.

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After some seemingly normal driving, the tech made his way onto the highway. Once he had enough room, he opened up the Corvette to about 115 mph (185 km/h), and did the same again on another highway. And if that wasn’t enough, the PDR video then shows him engaging in a street race with a Dodge Charger, weaving in and out of traffic and reaching speeds of up to 148 mph (238 km/h) at one point.

According to The Drive, after the owner found out what had been done with his car, the dealership offered him $500 worth of exterior and interior detailing, but seeing as the car was virtually brand new and already had a paint protection film installed, he was able to negotiate for an extended warranty. The owner told The Drive that he will have “no ill-will” against the dealership if they truly uphold their agreement.