Speed rating
The speed rating is part of the tire identification.It specifies the speed range for which the tire is
approved.
GVW (Gross Vehicle Weight)
The gross vehicle weight includes the weight of the vehicle with fuel, tools, the spare wheel,
accessories installed, vehicle occupants, lug-
gage and the drawbar noseweight if applicable.
The gross vehicle weight must not exceed the
gross vehicle weight rating GVWR as specified
on the vehicle identification plate on the B-pillar
on the driver's side.
GVWR (Gross Vehicle Weight Rating)
The GVWR is the maximum permitted gross
weight of the fully laden vehicle (weight of the
vehicle including all accessories, vehicle occu-
pants, fuel, luggage and the drawbar nose-
weight if applicable). The gross vehicle weight
rating is specified on the vehicle identification
plate on the B-pillar on the driver's side.
Maximum loaded vehicle weight
The maximum weight is the sum of:
Rthe curb weight of the vehicle
Rthe weight of the accessories
Rthe load limit
Rthe weight of the factory installed optional
equipment
Kilopascal (kPa)
Metric unit for tire pressure. 6.9 kPa corre-
sponds to 1 psi. Another unit for tire pressure is
bar. 100 kilopascals (kPa) are the equivalent of
1 bar.
Load index
In addition to the load-bearing index, the load
index may also be imprinted on the sidewall of
the tire. This specifies the load-bearing capacity
of the tire more precisely.
Curb weight
The weight of a vehicle with standard equipment
including the maximum capacity of fuel, oil and
coolant. It also includes the air-conditioning sys-
tem and optional equipment if these are instal-
led in the vehicle, but does not include passen-
gers or luggage.
Maximum load rating
The maximum tire load is the maximum permis-
sible weight in kilograms or lbs for which a tire is
approved.
Maximum permissible tire pressure
Maximum permissible tire pressure for one tire.
Maximum load on one tire
Maximum load on one tire. This is calculated by
dividing the maximum axle load of one axle by
two.
PSI (pounds per square inch)
A standard unit of measure for tire pressure.
Aspect ratio
Relationship between tire height and tire width
in percent.
Tire pressure
This is pressure inside the tire applying an out-
ward force to each square inch of the tire's sur-
face. The tire pressure is specified in pounds per
square inch (psi), in kilopascal (kPa) or in bar.
The tire pressure should only be corrected when
the tires are cold.
Cold tire pressure
The tires are cold:
Rif the vehicle has been parked with the tires
out of direct sunlight for at least three hours
and
Rif the vehicle has not been driven further than
1 mile (1.6 km)
Tread
The part of the tire that comes into contact with
the road.
Bead
The tire bead ensures that the tire sits securely
on the wheel. There are several steel wires in the bead to prevent the tire from coming loose from
the wheel rim.
Sidewall
The part of the tire between the tread and the
bead.
278All about wheels and tires
Wheels and tires
Dimensions andweights
Missin gvalues wer eno tavailable at time of
going to print .
:Openingheight
Rea rspoiler retrac-
ted, Mercedes‑ AMG
GT Roadste r66.5 in (1688 mm)
Rearspoiler retrac-
ted, Mercedes‑ AMG
GT CRoadste r66.5 in (1690 mm)
Rearspoiler exten-
ded ,
Mercedes ‑AMG
GT Roadste r66.7 in (1696 mm)
Rearspoiler exten-
ded ,
Mercedes ‑AMG
GT CRoadste r66.8 in (1697 mm)
All model s
Vehicle length ,
Mercedes ‑AMG
GT Roadste r179.4in
(4558 mm)
Vehicle length ,
Mercedes ‑AMG
GT CRoadste r179.7in
(4565 mm)
Vehicle width including
exterior mirror s81.7 in
(2075 mm)
Vehicle width excluding
exterior mirrors,
Mercedes ‑AMG
GT Roadste r76.3 in
(1939 mm)
All model s
Vehicle width excluding
exterior mirrors,
Mercedes ‑AMG
GT CRoadste r78.5 in
(1996 mm)
Vehicle height ,
Mercedes ‑AMG
GT Roadste r49.5 in
(1259 mm)
Vehicle height ,
Mercedes ‑AMG
GT CRoadste r49.6 in
(1260 mm)
Wheelbase103. 5in
(2630 mm)
Turning radius
Maximum trun kloa d
292Vehicle data
Technical data
