There are going to be some decent used options in a few short years. This thing isn't like top of class polished but it's certainly got some performance to offer.
Those specs are pretty good. That said, you can do this well or better with a used CTS V-sport and those were made all the way back to 2014. Both this G70 and a V-sport are faster than my CTS-V. But my CTS-V is a $10-12k used car.0-60 MPH 4.5 sec
QUARTER MILE 13.0 sec @ 108.5 mph
BRAKING, 60-0 MPH 109 ft
LATERAL ACCELERATION 0.92 g (avg)
MT FIGURE EIGHT 24.9 sec @ 0.77 g (avg)