Meet the G8 taillight and note the chrome dual outlet exhaust on the base six model.
| Chassis/Suspension |
| Front | Multi-link MacPherson strut; direct-acting 23mm stabilizer bar; progressive-rate coil springs; fully adjustable camber, caster, and toe |
| Rear | Four-link independent; progressive-rate coil springs over shocks; decoupled 18mm stabilizer bar; fully adjustable camber and toe |
| Steering Type | Variable-ratio, rack-and-pinion |
| Steering Ratio | 46-53 mm per revolution |
| Steering Wheel Turns, Lock-to-Lock | 2.8 |
| Turning Circle, Curb-to-Curb (ft) | 37.4 |
| Brakes |
| Type | Four-wheel disc with ABS; ventilated front and rear rotors; twin-piston front calipers; single-piston alloy rear calipers |
| Rotor Diameter (in) | G8 front: 11.73, G8 rear: 11.89; G8 GT front: 12.64/321, G8 GT rear: 12.76/324 |
| Rotor Thickness (in) | G8: 1.0; G8 GT: 0.87 |
Conversely, the G8 GT taillight features "crystal clear elements" and quad chrome exhaust outlets under the bumper.
| Wheels/Tires |
| | G8 | G8 GT |
| Wheel Size and Type: | 18x8-inch painted aluminum | 18x8-inch machine-faced aluminum (std); 19x8-inch machine-faced aluminum (optional in Sports Package) |
| Tires: | P245/45R18 all-season; summer tire optional | P245/45R18 summer tire (std); all-season tire optional; optional Sports Package includes P245/40R/19 summer tire |
| Dimensions |
| Exterior |
| Wheelbase (in) | 114.8 |
| Overall Length (in) | 196.1 |
| Overall Width (in) | 74.8 |
| Overall Height (in) | 57.7 |
| Track (in) | Front: 62.7; Rear: 63.3 |
| Curb Weight (lb) (estimated) | Base: 3,885; GT: 3,995 |
| Interior |
| Seating Capacity (front/rear) | 2/3 |
| Headroom (in) | Front: 38.7; Rear: 38 |
| Legroom (in) | Front: 42.2; Rear: 39.4 |
| Shoulder Room (in) | Front: 59.1; Rear: 59.1 |
| Hip Room (in) | Front: 56.7; Rear: 58 |
| Capacities |
| EPA Interior Volume (cu ft) | 124.5 |
| Cargo Volume (cu ft) | 17.5 |
| Trailer Towing Maximum (lb) | 2,000 |
| Fuel Tank (gal) | 19.2 |