He was probably the most volatile man I've ever seen around the race track," says newspaper columnist Furman Bisher on ESPN Classic's ... only one speed -- pedal to the floor.

Now that Toyota's massive 3.8 million-vehicle recall for floor mats with a mind of their ... automakers have created so-called "smart gas pedals." So, um, what's a smart gas pedal?

Toyota has announced that it will recall some 3.8 million cars ... the pedal replaced when the updated unit becomes available. Vehicles fitted with Toyota or Lexus-made all-weather floor mats ...