Saab used to be a very good little car company, selling safe cars that had good performance and were fun to drive. I owned a '73 99 EMS and it was great. Then I owned a '84 900 Turbo and it was almost as good.
But GM turned Saab from a car company into a division, and finally into just a brand -- sticking the Saab badge on Opels and Suburus. They turned it into a mediocre and unreliable car that was grossly overpriced -- mostly they were leased and not sold, and when the leases expired then a person could get a very good deal on a greatly-depreciated used Saab. But regrettably they had lost the technological edge that they had 20-25 years ago, when turbo Saabs were every bit as good as BMW 3-Series cars for about the same price. Now I don't know anyone who would choose a Saab instead of a BMW for the same price.
GM want Saab to die. It could just kill off the brand, but instead it tried to sell it first. Koenigssegg discovered, in time, that GM did not want the "new" Saab to compete against GM's remaining car divisions. So there were going to be limits on what technology Saab could use and where it could sell cars. The deck was stacked against Saab, GM wanted to make sure it could never be profitable.