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| Mercedes-Benz | Porsche | Motorcycles & Miscellanea | How Things Work (DIY) Section |
Modern Mercedes-Benz Coupe Comparison
2002 CLK430 / 2007 CLK550 / 2010 E-550 Coupe
Technical Data
| ME 2.8 W208 CLK430 | W209 CLK550 | C207 E-550 Coupe | |
| Vehicle type | Four-passenger coupe (W209 and C207 pillarless) | ||
| Engine | 90-degree V8 | ||
| Engine material | Aluminum block and heads | ||
| Valvetrain | Chain-driven single overhead camshaft per cylinder bank | Chain-driven dual overhead camshafts per cylinder bank | |
| Valve arrangement | 3-valve technology with two intake and one exhaust valve per cylinder | 4-valve technology with variable continuous camshaft adjustment on the intake and exhaust sides; valve actuation via roller-type cam followers | |
| Displacement (cu. in./cc) | 260.3 / 4,266 | 332.2 / 5,461 | |
| Bore (in./mm) | 3.54 / 89.9 | 3.86 / 98.0 | |
| Stroke (in./mm) | 3.31 / 84.0 | 3.56 / 90.5 | |
| Compression ratio | 10.0:1 | 10.7:1 | |
| Horsepower @ rpm | 275 @ 5,750 | 382 @ 6,000 | |
| Torque (lb-ft.) @ rpm | 295 / 3,000 - 4,000 | 391 @ 2,800 - 4,800 | |
| Intake system | Sequential fuel injection, electronic throttle control, magnesium two-stage resonance intake manifold | ||
| Engine management | ME 2.8 engine control with phase-shifted twin spark ignition, two coils and spark plugs per cylinder, integrated sequential multi-point fuel injection | Bosch ME 9.7 individual ignition coils and spark plugs for each cylinder | |
| Max. engine speed (rpm) | 6,000 | 6,500 | |
| Transmission | Five-speed electronically controlled automatic with Touch Shift and driver-adaptive shift logic | Seven-speed electronically controlled automatic with Touch Shift and driver-adaptive shift logic. Steering-wheel mounted gear shift controls | |
| Gear ratios | |||
|
1
2 3 4 5 6 7 R R2 "comfort" mode |
3.93:1
2.41:1 1.49:1 1.00:1 0.83:1 - - 3.10:1 1.82:1 |
4.38:1
2.86:1 1.92:1 1.37:1 1.00:1 0.82:1 0.73:1 3.42:1 2.23:1 |
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| Final drive | 2.87:1 | 2.65:1 | |
| Overall ratios | |||
|
1
2 3 4 5 6 7 |
11.27:1
6.92:1 4.28:1 2.87:1 2.38:1 - - |
11.6:1
7.58:1 5.09:1 3.62:1 2.65:1 2:17:1 1.93:1 | |
| Chassis | Unibody | ||
| Stability control | Electronic Stability Programming (ESP) integrating single brake application, throttle intervention for yaw control, plus throttle intervention for wheelspin control. | Electronic Stability Control (ESC) vehicle stability control systemthat is operated by engine power reduction and ABS. The system uses steering wheel angle, vehicle direction, yaw rate, wheel speed, and lateral acceleration. | |
| Suspension | Four-wheel independent | ||
| Front suspension details | Double wishbone (upper and lower control arms), coil springs, gas-charged shock absorbers, stabilizer bar, anti-lift and anti-dive geometry | Independent 3-link, antidive geometry; coil springs, gas shock absorbers, stabilizer bar | MacPherson struts, lower control links, coil springs, electronically adjustable shock absorbers, stabilizer bar |
| Rear suspension details |
Independent 5-arm multilink with geometry for antisquat and alignment control.
Stabilizer bar. Separate rear coil springs and gas-pressurized shock absorbers.
*The C207 has electronically adjustable shock absorbers |
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| Steering | Recirculating ball with hydraulic power assist | Rack-and-pinion, speed-sensitive hydraulic power assist and integrated hydraulic damper | |
| Turns, lock-to-lock | 3 | 3.2 | 3 |
| Turning radius (ft.) | 35.1 | 35.3 | |
| Front wheels (in.) | 7.5 x 17-inch thin-spoke light alloy | 7.5 x 17 AMG monoblock five-spoke | 8 x 18 aluminum alloy six-split-spoke |
| Rear wheels (in.) | 8.5 x 17-inch thin-spoke light alloy | 8.5 x 17 AMG monoblock five-spoke | 8.5 x 18.5 aluminum alloy six-split-spoke |
| Front tires | 225 / 45 ZR 17 | 235/40R18 high performance | |
| Rear tires | 245 / 40 ZR 17 | 255/35R18 high performance | |
| Brakes | Hydraulic power assisted 4-wheel discs with ABS anti-lock; Brake Assist | ||
| Front calipers | single-piston floating | four-piston fixed | single-piston sliding |
| Front disc type | vented | vented / cross drilled | vented |
| Front disc diameter (in./mm) | 11.8 / 300 | 13.6 / 345 | 13.4 / 340 |
| Rear calipers | single-piston fixed | dual-piston fixed | single-piston sliding |
| Rear disc type | solid | vented | |
| Rear disc diameter (in./mm) | 11.4 / 290 | 11.8 / 300 | |
| Exterior dimensions (in./mm) | |||
| Wheelbase | 105.9 / 2,690 | 106.9 / 2,715 | 108.7 / 2,761 |
| Length | 180.2 / 4,577 | 183.2 / 4,652 | 184.9 / 4,696 |
| Width (without mirrors) | 67.8 / 1,722 | 68.5 / 1,740 | 70.3 / 1,785 |
| Front track | 59.3 / 1,506 | 58.9 / 1,495 | 60.6 / 1,539 |
| Rear track | 58.0 / 1,474 | 60.8 / 1,544 | |
| Height | 54.0 / 1,371 | 55.4 / 1,408 | 55 / 1,397 |
| Curb weight ( | 3,365 | 3,720 | 3,783 |
| Weight distribution (coupe) | 1895 / 1620 | 1965 / 1620 | 2005 / 1630 |
| Aerodynamic drag (Cd) - coupe / cabrio | 0.30 | 0.31 | - |
| Interior dimensions (in./mm) | |||
| Front head room | 36.9 / 937 | 37.1 / 941 | 40.2 / 1021 |
| Front leg room | 41.9 / 1,064 | 42.0 / 1,067 | 42.0 / 1,067 |
| Front shoulder room | 52.8 / 1,342 | 53.2 / 1,351 | 54.1 / 1,374 |
| Rear head room | 35.8 / 909 | ||
| Rear leg room | 31.2 / 790 | 33.0 / 838 | |
| Rear shoulder room | 50.4 / 1,280 | 49.3 / 1,252 | 49.3 / 1,252 |
| Front hip room | 53.7 / 1,364 | - | |
| Rear hip room | 45.9 / 1,167 | - | |
| Capacities | |||
| Coupe cabin volume (cu. ft.) | 80.7 | 81.5 | - |
| Coupe cargo volume (cu. ft.) | 11.0 | 10.4 | 15.9 |
| Fuel tank (gal./liters) | 16.4 / 62 | 17.4 / 66 | |
| Performance | |||
| 0-60 (seconds) | 6.1 | 5.1 | 5.0 |
| Top Speed MPH | 130 - electronically limited | ||
| Lateral acceleration w/200-foot skidpad | 0.91g | 0.85g | 0.84g |
| 700-foot slalom spped w/100-foot cones | 62.8 MPH | 66.5 MPH | 63.2 MPH |
| Fuel economy (city/hwy) | 18 / 24 | 16 / 23 | |
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© 2009 Marcus Blair Fitzhugh
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