GENEVAEXOTICA
http://www.evo.co. uk 015
bySTUARTGALLAGHERRight:lightweight,
carbonfibre-shelledbucket
seats, aspictured, are a
£3788 option; Alcantara
with contrast stitching
abounds,including on the
GT-specificsteering wheel
PORSCHE718 SPYDER& CAYMANGT
Both cars also featureextensivelyrevised aerodynamics, witheven the
Spyder managingto generate downforce thanksto a modest deployable
rear spoilercombined with the highlyeffective underfloor andrear diffuser.
However, it’s theGT4 that boasts the biggest gains, with a 50 percent
increasein downforce but no penalty in drag. Some 30 percent of theGT4’s
total rear downforce is generated by its diffuser, which necessitat ed an all-
new single-chamberrear silencerfor the exhaustsystem. The fixed rear wing
is also 20 percent moreeffective than before.
WLTPregulations have required Porsche to install almost 12kg-worth of
hefty, flow-restrictinggasoline particulate filters into theexhaust of both the
GT4 and the Spyder. There’s also the mandatorystart-s top, which means
using a heavy-duty battery and upsized starter motor, which in turn denies
the possibility of a lightweight motorsportbattery.
If you’re an engineer wrackingyour brains tryingto save a few hundred