STOCKHOLM, Sweden - Spyker, the tiny Dutch luxury car maker that failed to revive Swedish automobile group Saab, says it has served Saab's former owner, General Motors Co., with the $3 billion lawsuit it lodged earlier this week.

On Monday, Spyker and its bankrupt former subsidiary Saab announced they would sue GM, accusing it of unfairly blocking deals that would have seen a Chinese manufacturer take over Saab production and save it from bankruptcy. Spyker claimed GM feared competing with Saab in China.

In Wednesday's statement, Spyker says GM has until Aug. 28 to respond to the complaint.

Saab went bankrupt in late 2011. It was recently bought out of bankruptcy by National Electric Vehicle Sweden.