Editing Automobile handling (section)

==== Roll angular inertia ====
This increases the time it takes to settle down and follow the steering. It depends on the (square of the) height and width, and (for a uniform mass distribution) can be approximately calculated by the equation:  <math>I=M(height^2+width^2)/12</math>.<ref>{{cite book|title=Engineering Mechanics 3|publisher=Springer|doi=10.1007/978-3-642-30319-7|year=2013|isbn=978-3-642-30318-0|last1=Gross|first1=Dietmar|last2=Hauger|first2=Werner|last3=Schröder|first3=Jörg|last4=Wall|first4=Wolfgang A.|last5=Rajapakse|first5=Nimal}}</ref>

Greater width, then, though it counteracts center of gravity height, hurts handling by increasing angular inertia. Some high performance cars have light materials in their fenders and roofs partly for this reason