Dominic Toretto

Brian O Connor & Dominic Torrotto are the main protagonists from the Fast And The Furious series.

Personality
Dominic drives his own cars like:

Dodge Challenger, Mazda RX7, Dodge Charger, Chevelle SS & Plymouth Road Runner.

Brian drives his own cars like:

Mitsubishi Eclipse, Toyota Supra, Nissan Skyline GTR R35, R31 & R34, Mitsubishi Lancer & Subaru Impreza.

Brian O Connor
Brian O Connor was a cop who was working undercover & becomes a renegade in the later film.

Dominic Torrotto
Dominic Torrotto was a street racer who was leading his own street racers for his own life.