Below is a complete list of the 2012 Mercedes-Benz CL-Class lineup specifications. This lineup includes specs for the CL550 4Matic, CL63 AMG, CL600, and the CL65 AMG.
| CL550 4MATIC | CL63 AMG | CL600 | CL65 AMG | ||
| Vehicle type | Two-door, four-passenger coupe | Two-door, four-passenger coupe | Two-door, four-passenger coupe | Two-door, four-passenger coupe | |
| Chassis | Steel unit body; aluminum front fenders, doors and hood; composite trunk lid. | Steel unit body; aluminum front fenders, doors and hood; composite trunk lid. | Steel unit body; aluminum front fenders, doors and hood; composite trunk lid. |
Steel unit body; aluminum front fenders, doors and hood; composite trunk lid. | |
| Engine | 90-degree V8 | 90-degree V8 | 60-degree V12 | 60-degree V12 | |
| Valve arrangement | Four valves per cylinder | Four valves per cylinder | 3 valves per cylinder | 3 valves per cylinder | |
| Valvetrain | DOHC per cylinder | DOHC per cylinder | Single overhead camshaft per cylinder bank | Single overhead camshaft per cylinder bank | |
| Displacement (cc) | 4,663 | 5,461 | 5,513 | 5,980 | |
| Bore (in./mm) | 3.66 | 3.86 | 3.23 | 3.25 | |
| Stroke (in./mm) | 3.39 | 3.56 | 3.43 | 3.66 | |
| Compression ratio | 10.5:1 | 10.0 : 1 | 9.0:1 | 9.0 : 1 | |
| Horsepower @ rpm | 429 @ 5,250 | 536 (563)* @ 5,500 | 510 @ 5,000 | 621 @ 4,800 | |
| Torque (lb-ft.) @ rpm | 516 lb-ft @ 1,800 – 3,500 | 590 (664)* @ 2,000 – 4,500 | 612 @ 1,800 – 3,500 | 738 @ 2,300 – 4,300 | |
| Intake system | Direct gasoline injection with piezo injectors, twin turbo w/12.9 lbs. boost | Direct gasoline injection with piezo injectors, twin turbo w/14.2 (15.6)* lbs. boost | Twin turbochargers, twin intercoolers | Twin turbochargers, twin intercoolers | |
| Max. engine speed (rpm) | 6,500 | 6,500 | 5,950 | 6,100 | |
| Transmission | Seven-speed automatic | Seven-speed multi-clutch transmission with AMG SPEEDSHIFT PLUS | Five-speed automatic | AMG SPEEDSHIFT Five-speed automatic | |
| Shift controls | Direct Select | Direct Select | Direct Select | Direct Select | |
| Gear ratios | Automatic | Automatic | Automatic | Automatic | |
| 1 | 4.38:1 | 4.38:1 | 3.60:1 | 3.60:1 | |
| 2 | 2.86:1 | 2.86:1 | 2.19:1 | 2.19:1 | |
| 3 | 1.92:1 | 1.92:1 | 1.41:1 | 1.41:1 | |
| 4 | 1.37:1 | 1.37:1 | 1.00:1 | 1.00:1 | |
| 5 | 1.00:1 | 1.00:1 | 0.83 | 0.83:1 | |
| 6 | 0.82:1 | 0.82:1 | — | — | |
| 7 | 0.73:1 | 0.73:1 | — | — | |
| R | - 3.42:1 | - 3.42:1 | - 3.16:1 | - 3.16:1 | |
| R2 “comfort mode” | - 2.23:1 | - 2.23:1 | - 1.93:1 | - 1.93:1 | |
| Final drive | 2.65:1 | 2.65:1 | 2.65:1 | 2.65:1 | |
| Stability control | 4MATIC All-wheel-drive, ESP stability control | ESP stability control | ESP stability control | ESP stability control | |
| Suspension | Four-wheel independent with AIRMATIC air suspension | Four-wheel independent with ABC active suspension; Automatic four-wheel level control, adjustable ride height, automatic lowering, crosswind stabilization | Four-wheel independent with ABC active suspension; Automatic four-wheel level control, adjustable ride height, automatic lowering, crosswind stabilization | Four-wheel independent with ABC active suspension; Automatic four-wheel level control, adjustable ride height, automatic lowering, crosswind stabilization | |
| front | Four-link, anti-dive control, AIRMATIC air suspension, gas shock absorbers, stabilizers | Four-link suspension, Active Body Control | Four-link; Active Body Control | Four-link suspension, Active Body Control | |
| rear | Multi-link independent suspension, anti-squat and anti-dive, AIRMATIC air suspension, gas shock absorbers | Multi-link independent suspension, Active Body Control | Multi-link independent suspension; Active Body Control | Multi-link independent suspension, Active Body Control | |
| Steering | Speed-sensitive power-assisted rack-and-pinion | Speed-sensitive power-assisted rack-and-pinion | Speed-sensitive power-assisted rack-and-pinion | Speed-sensitive power-assisted rack-and-pinion | |
| Turning radius (ft.) | 38.1 | 38.1 | 38.1 | 38.1 | |
| Wheels (in.) | front | 8.5 × 18 | 8.5 × 20 | 8.5 × 19 | 8.5 × 20 |
| rear | 8.5 × 18 | 9.5 × 20 | 9.5 × 19 | 9.5 × 20 | |
| Tires | front | 255 / 45 R 18 | 255/35 ZR20 | 255/45 R19 | 255/35 ZR20 |
| rear | 255 / 45 R 18 | 275/35 ZR20 | 275 / 45 R 19 | 275/35 ZR20 | |
| Brakes | Hydraulic power assisted 4-wheel discs with 4-channel ABS anti-lock; Brake Assist | Hydraulic power assisted 4-wheel discs with 4-channel ABS anti-lock; Brake Assist | Hydraulic power assisted 4-wheel discs with 4-channel ABS anti-lock; Brake Assist | Hydraulic power assisted 4-wheel discs with 4-channel ABS anti-lock; Brake Assist | |
| Disc diameter (in./mm) | front | 13.2 / 335; perforated, ventilated | 15.4; perforated, ventilated | 13.8 / 350; perforated, ventilated | 15.4; perforated, ventilated |
| rear | 11.8 / 200; ventilated | 14.4; perforated, ventilated | 12.6 / 320; ventilated | 14.4; perforated, ventilated | |
| Disc thickness (in./mm) | front | 1.4/ 36 | 1.3/ 32 | ||
| rear | 1.0/ 26 | 0.9/ 24 | |||
| Exterior dimensions (in. / mm) | |||||
| Wheelbase | 116.3 | 116.3 | 116.3 | 116.3 | |
| Length | 200.6 | 201.02 | 200.6 | 201.02 | |
| Width | 73.7 | 73.7 | 73.7 | 73.7 | |
| Height | 55.8 | 56.2 | 55.8 | 56.2 | |
| Ground clearance (in.) | 5.1 / 130 | TBD | 5.2 | TBD | |
| Track | front | 63.0 / 1,601 | 63.0 | 63 | 63.0 |
| rear | 63.3 / 1,607 | 63.3 | 63.3 | 63.3 | |
| Interior dimensions (in.) | |||||
| Head room | front | 36.9 | 36.9 | 36.9 | 36.9 |
| 2nd / 3rd row | 36.4 | 36.4 | 36.4 | 36.4 | |
| Leg room | front | 42.2 | 42.2 | 42.2 | 42.2 |
| 2nd / 3rd row | 32.2 | 32.2 | 32.2 | 32.2 | |
| Shoulder room | front | 59.2 | 59.2 | 59.2 | 59.2 |
| 2nd / 3rd row | 55.2 | 55.2 | 55.2 | 55.2 | |
| Cargo Length | Back row up | — | — | — | — |
| Back / 2nd row down | — | — | — | — | |
| Capacities | |||||
| Cabin volume (cu. ft.) | 104.2 | 104.2 | 104.2 | 104.2 | |
| Cargo volume | seats up | 13.5 | 13.5 | 13.5 | 13.5 |
| Back row down | — | — | — | — | |
| Curb weight (lbs.) | 4,619 | 4,806 | 4,894 | 5,027 | |
| Towing (lbs.) | — | — | — | — | |
| Max. total payload | |||||
| Fuel tank/reserve (gallons) | 21.9 / 2.9 | 23.8 / 3.7 | 23.8 / 3.7 | 23.8 / 3.7 | |
| AdBlue tank (gallons) | N/A | N/A | |||
| Performance | |||||
| 0-60 (seconds) | 4.8 (est.) | 4.4 (4.3)* (est) | 4.5 | 4.3 | |
| Top speed (mph) | 130 | 155 (186)* | 155 | 186 | |
| Fuel mileage, city/hwy | 16 / 24 / 18 | 16 / 22 / 18 | 12 / 18 / 14 | 12 / 18 / 14 | |
