"It's only a real show now when it rains," the former Renault team boss told Italy's Sky Sport 24.
Briatore, 61, blames the huge role played by technology.
"If you were to take GP2 cars and put the 6 world champions in them, it would be more fun," he insisted.
"The car is now made in the wind tunnel, the engineers aren't even at the circuits and they spend 200 million euros making identical machines.
"Last year, the championship was over after the first race, and this will be the same; McLaren are two tenths from Red Bull, Mercedes three, and Ferrari and Lotus 4 to 7.
"Two tenths is like 2-0 behind in a football game. In F1, the Messi is Alonso, but if his car is not competitive, he is going nowhere."