The GranSport was built by Maserati.
GranSport answers
When did Maserati stop making the GranSport?
Maserati stopped production on the GranSport in the 2006 model year. Maserati produced the GranSport for 1 year.
What years did Maserati make the GranSport?
The Maserati GranSport was produced from 2005 to 2006.