Originally Posted by sonoronos

The car was designed with a little-known built in safety feature. It's called Bosch "Horsepower For Safety" (otherwise known as HFS) and is designed to frustrate young males away from inherently useless activities like drag racing tin-can Chevy Cobalts with their Mercedes-built Near-Luxury Crossfires.

Just like TCS, ABS, and ESP, HFS cannot be disabled.

My understanding is that HFS is designed to reduce hormone-induced competitiveness by sampling the testosterone levels of the occupant 500 times a second. If the occupant's testosterone level is higher than deemed safe by strict ISO 9003 standards, the car responds by increasing the perceived difference in power. This usually results in the driver's testosterone levels decreasing and being replaced with feelings of inadequacy. The NHTSA has shown that this correlates strongly with a 50% decrease in street racing activities.