Phineas And Ferb Car Race is an online game at 43g.Com. You can play Phineas And Ferb Car Race in your browser for free.In this funny cartoon-style racing game, you can design your own racing car by pushing several car parts together. Then, you can take your new car out for a spin and race against a smart computer or another player. Player 1: Up Arrow Key - Accelerate. Left / Right Arrow Keys - Steer. Down Arrow Key - Brake. CTRL Key - Turbo Boost. Player 2: W - Accelerate. A / D - Steer. S - Brake. Shift Key - Turbo Boost.