Even though it’s substantially new, a casual observer isn’t going to mistake this car for anything other than a Porsche 911. Its shape is now so easily recognisable that it has become an icon.
However, in its latest iteration Germany’s most famous automotive export has grown by 56mm in overall length, 100mm in wheelbase and 46mm at the front track over its predecessor.
If you understand basic physics, you need know very little of this Porsche’s dynamic back story to work out why. With a longitudinal engine and gearbox hung out behind its rear wheels, the 911 has always been fundamentally inclined towards two idiosyncratic behavioural problems: power understeer and body pitch. For lever, fulcrum and load, think body, rear axle and engine. With more space between both the axles and the individual front wheels, both key dynamic challenges have been addressed here.
Aluminium has been used in place of steel throughout a great deal of the new 911’s construction. On the 991, almost all of the exterior body panels are aluminium and most of the body-in-white, except in areas such as the car’s pillars, where high compression strength is required.
As a result, on the coupé there’s like-for-like weight saving of around 45kg over its predecessor (depending on which model you are driving and what extras are fitted) and a 20 per cent improvement in torsional rigidity.