The INFINITI Q50 also stands out from the competition with its advanced INFINITI Direct Adaptive Steering, which is a precursor to future steering systems that will form a key building block on the way to achieving fully autonomous driving. Direct Adaptive Steering is able to transmit the driver's input to the wheels faster than a mechanical system while requiring fewer steering corrections, and it is able to make 1,000 steering adjustments per second. The system enhances the steering feel by quickly and intelligently communicating to the driver feedback about road surface and chassis behavior. This gives the driver a secure and confident feeling at the wheel, free from unnecessary steering kickbacks or vibrations. The elimination of unwanted feedback has the further benefit of reducing driver fatigue.
Direct Adaptive Steering is available on the RED SPORT 400 as part of the ProACTIVE package. Standard on PURE, LUXE andSENSORY models is a refined Rack Electronic Power Steering design.
Every Q50 features a 4-wheel independent suspension that provides an improved balance between confident handling and a comfortable ride. The front suspension is a double-wishbone design, while the rear suspension utilizes a multi-link design with coil springs and Dual Flow Path® shock absorbers (non-SPORT models). Extensive use of aluminum components for the suspension keeps weight down. The suspension also offers front and rear stabilizer bars.
Standard on RED SPORT 400 is the Dynamic Digital Suspension, which constantly adjusts the shock absorber valves within a wide range of damping force to control body motion when cornering. It monitors body roll, pitch and bounce rate to restrain body motion for a comfortable, confident and insulated ride in all conditions, ensuring that bumps and undulating road conditions are absorbed to maintain flat body posture.
Braking is provided by a 4-wheel power-assisted vented disc brake system with 4-wheel Anti-lock Braking System and Electronic Brake force Distribution and Brake Assist. Sport Brakes with upgraded rotors, 4-piston front calipers, 2-piston rear calipers and red painted calipers are standard on RED SPORT 400.
A range of wheel and tire combinations are available, starting with the Q50 PURE's 17x7.5-inch split 5-spoke aluminum-alloy, wheels with 225/55R17 all-season run-flat tires. In addition, 18x7.5-inch aluminum-alloy wheels with 225/50R18 all-season run-flat tires are offered on Q50 LUXE models.
Standard on the Q50 SENSORY are 19x8.5-inch aluminum-alloy sport wheels with 245/40R19 all-season or summer run-flat tires. The Q50 RED SPORT 400 AWD comes equipped with exclusive sport-design 19x9-inch aluminum-alloy wheels with 245/40R19 all-season run-flat tires. And finally, the Q50 RED SPORT 400 RWD comes with staggered aluminum-alloy wheels with 245/40R19 front, 265/35R19 rear run-flat summer tires.
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