Okay. I want this more based off of the sensation of speed then numerical speed.
Having played all the above mentioned games except for Pole Position; I'll cast my vote on Ballistics for PC/Linux and Arcade. No player in the world has reached the absolute maximum speed allowed by the game. To do so would require frequent booster refills and a straight course with no obstacles. Some players have reached speeds just over 6000km/h, though. The game doesn't need to rely on motion blur effects to give you a sense of speed. The game is fast enough to be nothing but a blur without any shader usage.
Having played all the above mentioned games except for Pole Position; I'll cast my vote on Ballistics for PC/Linux and Arcade. No player in the world has reached the absolute maximum speed allowed by the game. To do so would require frequent booster refills and a straight course with no obstacles. Some players have reached speeds just over 6000km/h, though. The game doesn't need to rely on motion blur effects to give you a sense of speed. The game is fast enough to be nothing but a blur without any shader usage.