Marchionne, speaking on the sidelines of the opening of a Maserati dealership near Toronto, said he had met with Apple Chief Executive Tim Cook and Tesla CEO and founder Elon Musk, among others, on the trip, during which he also rode in Google's self-driving car.
"I'm incredibly impressed with what that kid has done," he said, referring to Musk.
With regard to Apple's Cook, he said: "He's interested in Apple's intervention in the car, that's his role." Marchionne was not more specific about Apple.
Sources have said Apple has been developing its own electric self-driving car. The company has been open about wanting to integrate its core iOS software into autos with a system called CarPlay, which allows drivers to access information on their iPhones without taking their hands off the streering wheel.
The Fiat chief declined to elaborate or describe the meetings in any more detail.