I did almost the same with a German car - which I in fact did buy. I drove it like a German. Not quite up to 120 mph though (I have driven at 220 km/h in Germany).
Years ago, I was looking at and later bought a Dodge Omni GLH Turbo. On the test drive, I ran it a little hard. He was in the back seat behind my wife and told me that the little car was pretty fast and that he took it up to 80 once. I looked back and said “I;m doing 85 now dude.” This was back in the 55mph days so I was doing 30 over.