General Motors Corp's (GM) Saab Automobile AB has signed a letter of intent to be sold to Koenigsegg, a Swedish maker of exclusive sports cars, Swedish television station SVT reported Thursday.

Koenigsegg's purchase of Saab would be backed by Norwegian investors, SVT reports, citing anonymous sources.

Final negotiations are expected to take months, SVT says.

A message requesting comment left with a Saab spokeswoman wasn't immediately returned.

Company Web site: www.saab.com

-By Ola Kinnander, Dow Jones Newswires; +46-8-5451-3097; ola.kinnander@dowjones.com