I can not comment yet on this SE, and this is not an answer to the question, but I feel like I have to warn you. And the other two answer you got (Jan's and Tor-Einar Jarnbjo's) are still pretty good.
Before you go racing, you may want to check this video about a situation identical to yours:
This happened a year ago on a Hungarian highway. There are absolute speed limits in the country, but the guys did not care...
The initial situation is pretty much like what you planned: they rent a Lamborghini Huracan, took it on the highway, and drove it at 330kmph., while the passenger was recording. The highway there is a really high quality one, as close as you could get to a raceway in an Autobahn. (As a Hungarian I have been there occasionally.) Still, the event happened:
They lost control of the supercar, It wrecked, turned upside down and burned completely out. The driver suffered, miraculously, only light injuries, could get out of the car and pull the seriously (permanently!) injured passenger before it burned to ashes, thus they survived the impossible. The recording they made also survived, making it possible for the Hungarian Police to submit it.
The moral is that you must be extremely careful when you do what you planned. This was an identical situation, and the result was nearly fatal. And considering most of the German Autobahns were built long before this part of highway, they might be in worse condition, making this outcome more likely.