The look is functional as well as aesthetic, since the steeply raked top and resulting smaller frontalarea make the car much more aerodynamic than its predecessors.
Damage or abnormalities in the frontal lobe -- a brain area that regulates movement, inhibition, emotions and general behaviors -- has been linked to violent behavior.
When you start something new, a large number of neurons in the frontal cortex (the higher, more conscious command area of the brain) are recruited and become active, helping you in the learning process.
Whether the loss of frontal tissue has any relationship with the robust political opinions for which London cabbies are renowned is an area that remains mercifully uninvestigated.