evo UK – September 2019

(Axel Boer) #1


http://www.evo.co. uk 015




seats, aspictured, are a

£3788 option; Alcantara

with contrast stitching

abounds,including on the

GT-specificsteering wheel


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

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