Chassis and driving dynamics

Chassis and driving dynamics  - Overview - Infiniti G

Infiniti G37 Coupé uses the second-generation version of Infiniti's FM platform. The 'front midship' engine location sees the compact V6 mounted in the front of the car, but as low and as far back as possible, with most of the block behind the front axle line. The result lowers the centre of gravity and helps to deliver the optimum front to rear weight distribution.

The fully independent suspension uses lightweight aluminium components to reduce weight as much as possible. A double wishbone set up at the front and a subframe-mounted multi-link arrangement at the rear allied to an extremely rigid body shell, gives the Infiniti G37 Coupé agile handling perfectly in keeping with its performance potential.

All versions of Infiniti G37 Coupé come with Electronic Stability Program (ESP), while the power-assisted four-wheel vented disc brakes have a four-channel, four-sensor Anti-lock Braking System (ABS), Electronic Brake force Distribution (EBD) and Brake Assist (BA) as standard.

To enhance the braking feel, the Infiniti G37 Coupé uses a 'link-design' pedal which becomes progressively firmer as g-forces and vehicle speed increases. As a result, the driver has a more direct sensation of the forces acting on the car as he brakes from high speed, as well as the benefit of increased assistance. At lower speeds the brake is easier to operate but with more travel relative to assistance.

The power steering system is a vehicle-speed-sensing type with a twin-orifice structure, which provides optimum steering effort at both high and low vehicle speeds.

The sports oriented G37S version has a number of chassis changes in keeping with its sharper profile. The principal enhancement is the addition of the 4-Wheel Active Steer (4WAS) system which helps improve handling performance still further by varying the front steering ratio and adjusting the geometry of the rear suspension according to steering input and vehicle speed.

Other standard features of the G37S include a Viscous Limited Slip Differential, recalibrated suspension settings and an enhanced braking system with four piston front brakes and two piston rears.

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