>> "In result cars are practically identical and race is very boring."

Not true at all. If the cars were practically identical Red Bull wouldn't be running away with the championship every year. As important as the drivers are in F1 the car is much more important.

>> "Formula 1 was ruined by restrictions on maximal engine performance, acceleration... even tyres are dictated"

Without some of those restrictions most of the smaller teams couldn't afford to go racing. We would lose probably half the teams. And tyres are what has made F1 so exciting these last few years. Tyres could easily be made to last an entire race taking away the strategy aspect from F1 that makes it so interesting.