Since the car owner made a video, we can see the impressive performance of this superfast Saab sedan. To remind you, this car has a monstrous power of almost 600 horsepower and 710Nm of torque! All this has been achieved thanks to the huge number of modifications.
Of course, Acceleration and testing of such vehicles on the highway is not desirable or safe, but mother of god that was nasty acceleration at any gear. The video looks incredible, especially the part taken from the passage above the highway:
See the detailed specifications of this tuned Saab: