Sports car maker Ferrari SpA, for one, has filed a patent application that indicates the company is evaluating technology that would embed wireless electrodes in a car seat's headrest to monitor drivers' brain waves for stress as they pilot machines capable of roaring up to 200 miles per hour.

WSJ: Designing a Car That Takes Your Pulse, Senses If You're Ill

He was accused of gaining an advantage by cutting the Spa circuit's Bus Stop chicane in a late-race battle with Ferrari's Kimi Raikkonen.

BBC: Hamilton stripped of Belgian win