Specs - 2008 Chevrolet Impala Technical Specifications
| Brakes | LS | LT | LT 50th Anniversary | LTZ | SS |
|---|
| Brake ABS System | | | 4-Wheel | 4-Wheel | 4-Wheel |
| Disc - Front (Yes or ) | Yes | Yes | Yes | Yes | Yes |
| Disc - Rear (Yes or ) | Yes | Yes | Yes | Yes | Yes |
| Front Brake Rotor Diam x Thickness (in) | 11.9 x 1.18 | 11.9 x 1.18 | 11.9 x 1.18 | 11.9 x 1.18 | 11.9 x 1.18 |
| Rear Brake Rotor Diam x Thickness (in) | 11.0 x 0.43 | 11.0 x 0.43 | 11.0 x 0.43 | 11.0 x 0.43 | 11.0 x 0.43 |
| Cargo Area Dimensions | LS | LT | LT 50th Anniversary | LTZ | SS |
|---|
| Trunk Volume (ft³) | 18.6 | 18.6 | 18.6 | 18.6 | 18.6 |
| Engine | LS | LT | LT 50th Anniversary | LTZ | SS |
|---|
| Displacement | 3.5L/214 | 3.5L/214 | 3.5L/214 | 3.9L/237 | 5.3L/325 |
| Engine Type | Gas/Ethanol V6 | Gas/Ethanol V6 | Gas/Ethanol V6 | Gas/Ethanol V6 | Gas V8 |
| SAE Net Horsepower @ RPM | 211 @ 5800 | 211 @ 5800 | 211 @ 5800 | 233 @ 5600 | 303 @ 5600 |
| SAE Net Torque @ RPM | 214 @ 4000 | 214 @ 4000 | 214 @ 4000 | 240 @ 4000 | 323 @ 4000 |
| Exterior Dimensions | LS | LT | LT 50th Anniversary | LTZ | SS |
|---|
| Height, Overall (in) | 58.7 | 58.7 | 58.7 | 58.7 | 58.7 |
| Length, Overall (in) | 200.4 | 200.4 | 200.4 | 200.4 | 200.4 |
| Min Ground Clearance (in) | - TBD - | - TBD - | - TBD - | - TBD - | - TBD - |
| Wheelbase (in) | 110.5 | 110.5 | 110.5 | 110.5 | 110.5 |
| Width, Max w/o mirrors (in) | 72.9 | 72.9 | 72.9 | 72.9 | 72.9 |
| Fuel Tank | LS | LT | LT 50th Anniversary | LTZ | SS |
|---|
| Fuel Tank Capacity, Approx (gal) | 17 | 17 | 17 | 17 | 17 |
| Steering | LS | LT | LT 50th Anniversary | LTZ | SS |
|---|
| Lock to Lock Turns (Steering) | 2.4 | 2.4 | 2.4 | 2.4 | 2.3 |
| Steering Type | Pwr Rack & Pinion | Pwr Rack & Pinion | Pwr Rack & Pinion | Pwr Rack & Pinion | Pwr Rack & Pinion |
| Turning Diameter - Curb to Curb (ft) | 38 | 38 | 40 | 40 | 40 |
| Suspension | LS | LT | LT 50th Anniversary | LTZ | SS |
|---|
| Suspension Type - Front | MacPherson Strut | MacPherson Strut | MacPherson Strut | MacPherson Strut | MacPherson Strut |
| Suspension Type - Rear | Tri-Link | Tri-Link | Tri-Link | Tri-Link | Tri-Link |
| Suspension Type - Rear (Cont.) | Touring | Touring | Performance Tuning | Touring | Performance Tuning |
| Tires | LS | LT | LT 50th Anniversary | LTZ | SS |
|---|
| Front Tire Size | P225/60R16 | P225/60R16 | P235/50WR18 | P235/50WR18 | P235/50WR18 |
| Rear Tire Size | P225/60R16 | P225/60R16 | P235/50WR18 | P235/50WR18 | P235/50WR18 |
| Transmission | LS | LT | LT 50th Anniversary | LTZ | SS |
|---|
| Drivetrain | Front Wheel Drive | Front Wheel Drive | Front Wheel Drive | Front Wheel Drive | Front Wheel Drive |
| Trans Description Cont. | Automatic w/OD | Automatic w/OD | Automatic w/OD | Automatic w/OD | HD Automatic w/OD |
| Trans Type | 4 | 4 | 4 | 4 | 4 |
| Vehicle | LS | LT | LT 50th Anniversary | LTZ | SS |
|---|
| Front Head Room (in) | 39.4 | 39.4 | 39.4 | 39.4 | 39.4 |
| Front Leg Room (in) | 42.3 | 42.3 | 42.3 | 42.3 | 42.3 |
| Front Shoulder Room (in) | 58.7 | 58.7 | 58.7 | 58.7 | 58.7 |
| Passenger Capacity | 5 | 5 | 5 | 5 | 5 |
| Passenger Volume (ft³) | 104.5 | 104.5 | 104.5 | 104.5 | 104.5 |
| Second Head Room (in) | 37.8 | 37.8 | 37.8 | 37.8 | 37.8 |
| Second Leg Room (in) | 37.6 | 37.6 | 37.6 | 37.6 | 37.6 |
| Second Shoulder Room (in) | 58.6 | 58.6 | 58.6 | 58.6 | 58.6 |
| Weight Information | LS | LT | LT 50th Anniversary | LTZ | SS |
|---|
| Base Curb Weight (lbs) | 3555 | 3555 | 3555 | 3649 | 3711 |