With new active
safety and communication technologies
Infinity Q50 sedan replaces the G47 this summer:
3.7 V6, hybrid 3.5 V6, 7-speed auto and RWD or AWD
Infiniti Q50 in the premium midsize segment.
2013, Tony Kanaan: From
this summer, the new premium midsize Infiniti model will be called the
Q50, when it replaces the current G37.
The reason of this change
is not limitied to the 2014 Infiniti Q50, which gets its world première at the 2013 North American International Auto Show
in Detroit (NAIAS, public days from 19 to 27 January).
Infiniti Q50 is in fact the first model
to bring the new naming structure to Infiniti, the premium brand of the Japanese
Nissan carmaker, to simplify the designations in its model
Simply put, the Q prefix will be adopted for sedans (4-door saloons),
and convertibles (cabriolets), while the addition of the X after the Q will mean that
the QX will be for crossover and SUV models.
roofline and "crescent-cut" C-pillar.
Following the prefix, the double digits will
represent the segment position of
the model within the range, rather than the engine displacement or power.
Many manufacturers are taking this path, especially that the constant
evolution of modern engine technology is leading to more power and torque
from smaller displacements, less cylinders, direct injection, better
alloys, more precise electronic controls and other means such as
turbochargers or direct compressors, at least in a growing number of
With this in mind, potential
customers may associate a smaller number in a model's name, with a reduction
in its power, while the opposite is often true and only the displacement is
smaller (with better fuel economy). BMW's naming policy is another example:
a BMW 328i has a turbocharged 2.0-litre, 4-cylinder engine and a BMW 335i
has a turbocharged 3.0-litre, 6-cylinder engine.
The rear double-arch boot line completes the arch
Back to the "Q",
and for the record, Infiniti’s first flagship
model was launched in 1989, and it was a "Q": the Q45. At the time, the "45"
figure represented the 4.5-litre capacity of the V8 engine.
Hence, the 5-passenger
Q50 model will represent the brand in the
premium midsize segment which includes the likes if the BMW 3-Series, Audi
A4, Mercedes-Benz C-Class, or the Lexus IS model which will also get
its new generation this summer.
The main specifications
of the new
Q50 (American specifications. Other specs will be announced later
for each market in Europe, South Africa, Middle East and Russia) begin with
the choice between the rear-wheel drive or all-wheel drive systems, a 3.7-litre V6 (328-horsepower) gasoline (petrol)
engine, or the 3.5-litre gasoline
petrol engine with the Direct Response Hybrid System.
Outside, the midsize
premium model comes with a dynamic design in comfortable body
dimensions for the wheelbase (2850 mm,
112.2 inches), overall length (4782 mm, 188.27 in.) – both equivalent to
those of the G37 – with 1824mm (71.8 in.) for the width and 1443mm (56.8
in.) in height. The coefficient of drag stands at a good 0.26 figure.
“double arch” grille.
design features what Infiniti calls the “double arch” grille, with a dynamic arch
roofline and "crescent-cut" C-pillar. On the side, the heated outside mirrors come with
integrated LED turn signals.
At the rear, the
side lines merge with the shape of the rear LED
combination lights. The rear double-arch boot line completes the arch
theme. A power sliding and
tilting glass sunroof is optional.
comes with a driver-oriented cockpit, a choice of different fabrics and
colours, including leather-appointed seating surfaces, and the new
Infiniti InTouch communications system with large dual
touch-screens. Of course, features
need to be checked if standard or optional, depending on markets and
Interior features include Dual-Zone
Automatic Temperature Control, Bluetooth Hands-free Phone System,
RearView Monitor and optional Advanced Climate Control System (ACCS) with
Plasmacluster air purifier and Around View Monitor with Moving Object
The luggage volume is announced at 510 litres (18
cubic-foot) with the 3.7-litre V6 and 399 litres (14.09 cu. ft.)
with the hybrid powertrain.
The cabin also gets a standard Active Noise Control,
which helps in cancelling of intrusive
low frequency noise, from four door-mounted speakers.
The 2014 Infiniti Q50 will be launched in North America
with two petrol engines, followed by other options
in other global markets later in the year.
aluminium-alloy V6 engine features DOHC 24-valve with Continuously Variable Valve Timing Control System
(CVTCS) and Variable Valve Event & Lift (VVEL). It develops 328 horsepower
(245 kW) and 269 lb-ft
(364.6 Nm) of torque.
The optional hybrid powertrain
features Infiniti's Direct Response Hybrid system with Intelligent Dual
Clutch Control. It combines a 3.5-litre 24-valve DOHC aluminium-alloy V6
petrol engine and compact laminated lithium-ion battery design with a one-motor/two-clutch motor control.
The hybrid's V6 is rated at 302
horsepower (225 kW) and 258 lb-ft (350 Nm) of torque, while the 50 kW electric
motor is rated at 67 horsepower and 199 lb-ft of torque (270 Nm). The hybrid system
net power is 360 horsepower. The Hybrid system net power comes at 360
horsepower (268 kW).
Both powertrains are matched to a 7-speed electronically controlled automatic transmission with
manual shift mode (with both the
rear-wheel drive or the all-wheel drive systems) and optional steering column-mounted magnesium paddle
On the active safety side,
Infiniti lists other options which include an intelligent cruise control with full speed
predictive forward collision warning, forward emergency
control assist, blind spot
intervention, back-up collision
high beam assist, the lane departure prevention as well as
two new technologies make their debuts in the Q50: the Infiniti Direct Adaptive Steering technology and
Active Lane Control.
While the Q50 comes
with a standard vehicle-speed-sensitive
power steering, an optional Direct Adaptive
Steering system allows advanced control of the tire angle and steering inputs, transmitting the
steering wheel movements to the wheels faster than the mechanical system.
The aim is obviously to increase the direct driving feel
thanks to the faster feedback received by the driver.
comes with a driver-oriented cockpit.
Four different steering settings
allow the customization according to driver preference or road conditions,
as the driver can change both steering effort and the steering gear ratio.
Models fitted with the new
Direct Adaptive Steering technology still have the
mechanical steering system as a backup.
The also optional Active Lane Control
system uses a camera-based lane marker detection system to further enhance
on-center driving capability.
Infinity explains that while it is included as part of the Lane
Departure Prevention system, the Active Lane Control
system goes further, since it does not only read the road ahead (the
camera is located above the rear view mirror) for unintended lane drift,
but it also makes small steering input angle adjustments if the Q50
undergoes minor direction changes due to road surface changes or
crosswinds (as detected by the lane marker detection system). Infiniti
adds that with less steering adjustments to do, the driver could experience less
tiredness over longer distances.
The Japanese luxury carmaker underlines the suspension's
extensive use of lightweight aluminium components, along with
front and rear stabiliser bars, in addition to the improvement in
front body stiffness (versus the previous generation).
The four-wheel independent multi-link suspension of the
Q50 features at the front a single pivot
double-wishbone design, while the revised rear design utilises a
multi-link design with coil springs and Dual Flow Path shock absorbers,
with increased camber stiffness. A sport-tuned suspension is available with
Below the suspension, the Q50 rides on 17-inch
machine-finished aluminium-alloy wheels with 225/55R17 all-season run-flat
tyres. Optional 19-inch aluminium-alloy sport wheels are available with
245/40R19 run-flat all-season or summer tyres.
The standard braking system includes 4-wheel power-assisted vented disc brakes with 4-wheel
Anti-lock Braking System (ABS), Electronic Brake force Distribution (EBD) and
Brake Assist (BA). Optional sport brakes come with upgraded discs,
4-piston front calipers and 2-piston rear ones.
two touch capacitive screens work together.
With the new Infiniti InTouch
telematics system, the Q50 gets two touch capacitive screens. Both screens work together,
allowing the navigation map to be viewed on the top screen
while setting destinations or finding points-of-interest on
the lower one. Certain functions, such as heating
and cooling, are operated by hard switches.
Infiniti indicates that a selection of vehicle-related apps will
be pre-loaded into the system, with the possibilty to download,
update and sync personal apps through the owner's smart-phones and USB drives.
Another option is the new i-Keys system which can recognise
up to four different drivers and automatically engage the
pre-set preferences for driving position, heating and cooling, audio,
navigation and telematics. Default and customisable settings are accessed through the dual touch-screen
Also, the drive
mode selector located on the centre console permits the selection of different sport or touring
settings for the engine, transmission,
handling and steering adjustments.