The race to build the fastest fighter jets on Earth has produced machines that barely seem compatible with human reflexes.

When he squeezes into his bright red ski suit and puts on his Darth Vader-esque helmet, speed skier Simon Billy hears nothing and sees very little.

As BMW's in-house tuning division, BMW M is responsible for some of the world's finest performance vehicles. The brand is famously known for not being content with its already blazingly fast machines.