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2003 INFINITI Q45

Overview Photos Specs Reviews Bulletins Recalls
Brakes 4-wheel vented discs:
  • 11.4" x 1.1" front rotors
  • 11.5" x 0.6" rear rotors
    4-wheel 4-channel ABS with Electronic Brake force Distribution
    Brake-assist system
     
Steering Electronically controlled vehicle-speed-sensitive power rack-and-pinion
Turns (lock to lock): 3.3
Turning circle (curb-to-curb) 36.1 feet
 
Suspension 4-wheel independent suspension:
  • Front strut with stabilizer bar
  • Rear multi-link coil spring with stabilizer bar Front strut tower bracing
    Available active damping suspension with driver-selectable sport model
     
Wheels and Tires 6-spoke 7.5 x 17" aluminum-alloy wheels with P225/55VR17 performance tires
Available 8-spoke 7.5" x 18" aluminum-alloy wheels with P245/45VR18 performance tires
Available run-flat tires for 17-inch alloy wheels (fall 2001)
Available full-size spare tire with matching alloy wheel
Tire pressure monitoring system
 
Dimensions Wheelbase: 113.0 inches
Overall length: 199.6 inches
Overall width: 72.6 inches
Overall height: 58.7 inches
Tread width front/rear: 62.2"/61.4"
Head room front/rear: 38.4"/36.4"
Leg room front/rear: 44.0"/37.3"
Shoulder room front/rear: 58.2"/57.2"
Hip room front/rear: 55.9"/58.0"
 
Capacities
and Weights
Interior volume: 102.1 cubic feet
Cargo volume (with temporary spare tire) 13.7 cubic feet
Cargo volume (with full-size spare tire) 13.6 cubic feet
Fuel capacity: 21.4 gallons
Curb weight: 3801 lbs
Weight distribution front/rear: 56%/44%
 
Fuel Economy City/Hwy: 17/25 mpg
 
Engine 4.5-liter, 32-valve, DOHC aluminum-alloy V8
340 horsepower @ 6,400 RPM
333 ft-lbs of torque @ 4,000 RPM
10.5:1 compression ratio
Lightweight molybdenum-coated pistons
Continuously Variable Valve Timing Control
Titanium intake and exhaust valves
Electronically controlled variable induction system
Direct ignition system with platinum-tipped spark plugs
Electronically controlled throttle chamber
Sequential multi-point fuel injection
Electronically controlled high-capacity muffler
Dual-flow cooling system with hydraulic-driven fan
 
Mechanical Features 4.5-liter, 340 horsepower 32 valve DOHC V8
Electronically controlled 5-speed automatic transmission with manual shift
Traction Control
4-wheel vented disc brakes with Electronic Brake force Distribution and break assist
4-wheel independent suspension with front and rear stabilizer bars
17-inch aluminum-alloy with V-rated performance tires
 
Exterior features Multi-lens HID xenon headlights with auto-off feature
Power glass sunroof with one touch open/close feature
UV-reducing glass
Vehicle-speed-sensing intermittent wipers
Dual heated power outside mirrors with two-position memory
Automatic reverse tilt-down mirrors (rearview and driver's only)
Automatic dimming outside mirrors (rearview and driver's only)
Side turn signals integrated in outside mirrors
Body-color door handles with chrome accents
 
Interior seating and trim features Sojourner leather-appointed interior
10-way power driver seat with adjustable lumbar support
8-way power passenger seat
2-postion driver's seat
Driver entry/exit assist
Genuine bird's-eye maple wood accents
Leather and bird's-eye maple steering wheel
Front and rear carpeted floor mats
 
Comfort and convenience features Dual-zone Automatic Temperature Control with auto-intake system
In-cabin microfiltration system
Outside ambient temperature display
Cruise control
Rear air-condition and heating vents
Power tilt/telescopic steering column with 2-position memory
Power windows with auto up/down feature
Retained accessory power for windows and power sunroof
HomeLink? Universal Transceiver with rolling code feature
Power trunk and fuel-door release
 
Bose? audio system features 8 speakers, including one 12-inch Bose Nd woofer
Bose AudioPilot? noise-compensation technology
Steering-wheel-mounted audio controls
Rear window in-glass diversity antenna system
Voice recognition that operates climate control, audio, and optional navigation system
 
Safety Dual-stage front supplemental air bags
Front seat supplemental air bags
Supplemental side curtain side-impact air bag for front and rear passengers
Front seat active head restraints
3-point seat belts in all seating positions
Front seat belts with pretensioners and load limiters
LATCH system (Lower Anchors and Tether for Children)
First-aid kit
Emergency inside trunk release
 
Transmission Electronically controlled 5-speed automatic overdrive
Gated console shifter with manual shift mode
Electronic real-time feedback with learning algorithm
 

 

 

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