Chrysler may acquire Gulfstream Aerospace.

The nation’s No. 3 auto maker reported that is negotiating to buy the Savannah, Ga.-based manufacturer of corporate aircraft for $646 million. Chrysler said it intends to buy 100% of Gulfstream’s 34 million shares at $19 each. Gulfstream reported 1984 sales were $600 million, or about 3% of Chrysler’s $19.5 billion. Allen Paulson, Gulfstream’s chairman and holder of 71% of its stock, said he had granted Chrysler a six-month option to buy 6.7 million of his shares while talks continue on a buy-out of the public shares.