UniformTireQualityGrading
Qualitygradescanbefoundwhereapplicableon
thetiresidewallbetweentreadshoulderand
maximumsectionwidth.
198PracticalTips,EmergencyService
Example
AllpassengercartiresmustconformtoFederal
SafetyRequirementsinadditiontothesegrades.
Treadwear
Thetreadweargradeisacomparativerating
basedonthewearrateofthetirewhentested
undercontrolledconditionsonaspecificgovern-
menttestcourse.
Forexample,atiregraded150wouldwearone
andahalf(1-112)timesaswellonthegovern-
mentcourseasatiregraded100.
Therelativeperformanceoftiresdependsupon
theactualconditionsoftheiruse,however,and
maydepartsignificantlyfromthenormdueto
variationsindrivinghabits,servicepracticesand
differencesinroadcharacteristicsandclimate.
TractionAA,A,B,C
Thetractiongrades,fromhighesttolowest,are
AA,A,B,andCandtheyrepresentthetire's
abilitytostoponwetpavementasmeasured
undercontrolledconditionsonspecifiedgovern-
menttestsurfacesofasphaltandconcrete.
AtiremarkedCmayhavepoortractionperfor-
mance.
/?\.Warning!
Thetractiongradeassignedtothisisbasedon
braking(straight-ahead)tractiontestsanddoes
notincludecornering(turned)traction,accelera-
tion,hydroplaningorpeaktractioncharac-
teristics.
Dimensions
911Carrera,
Carrera4,Targa
911Carrera4S
Length
Width
Height
Wheelbase
Groundclearance
Turningcircle
Overhanganglefront
Overhanganglerear
Rampangle
175.9
in./4465mm
69.7in./1770mm
51.4in./1305mm
92.6in./2350mm
4.3in./110mm
34.8ft./10.6m
12.5°
14°
13.5°
175.9in./4465mm
72.1in./1830mm
51.0in./1295mm
92.6in./2350mm
4.3in./110mm
34.8ft./10.6m
12°
13.5°
14°
Transmission
GearratiosManualtransmissionTiptronicS
1st
gear
2ndgear
3rdgear
4thgear
5thgear
6thgear
3.82:1
2.20:1
1.52:1
1.22:1
1.02:1
0.84:1
3.60:1
2.19:1
1.41:1
1.00:1
0.83:
1
Reverse
1st
gear
2ndgear
Finaldriveratio
3.55:13.17:1
1.93:1
3.37:13.44:1
254TechnicalData
