Road Tests Real world tests of CLS 63 AMG vs 550

Differences What are the advantages of each

Car-autoblog view of Mercedes-Benz CLS 63 AMG

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Faster top speed 186 mph vs 130 mph 56 more mph; leaves lesser cars in the dust on the straights
More powerful engine 550 HP @ 5,500 RPM vs 402 HP @ 5,000 RPM More than 35% stronger engine
More torque 590 ft-lb @ 2,000 RPM vs 443 ft-lb @ 1,600 RPM Around 35% stronger engine from a stand-still; more acceleration power
Faster to 60mph 4.3 s vs 5.1 s More than 15% faster to 60mph
More expensive sticker price $96k vs $72k Around 35% more expensive harder to own
Better power-to-weight ratio 7.77 lb/hp vs 10.34 lb/hp Around 25% better power-to-weight ratio
Front view of Mercedes-Benz CLS 550

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Slightly lighter curb weight 4,158 lb vs 4,275 lb Around 5% lighter curb weight; less inertia to overcome when accelerating

Specifications Full list of technical specs

general

CLS 63 AMG  vs
550 
Brand Mercedes-Benz Mercedes-Benz
Price 95,775 72,175
Type of car Production car Production car
Year 2012 2011
City mileage 16 MPG 17 MPG
Highway mileage 21 MPG 26 MPG

transmission

Drivetrain RWD RWD
Gearing Traditional Traditional
# of gears 7 7

suspension, wheels & brakes

Front brakes Disc Disc
Rear brakes Disc Disc

physical dimensions

Curb weight 4,275 lb 4,158 lb
Width 74.1 in 73.7 in
Height 55.4 in 55.9 in
Length 196.7 in 193.6 in
Wheelbase 113.2 in 112.4 in

road tests

CLS 63 AMG  vs
550 
Top speed 186 mph 130 mph
0-60mph 4.3 s 5.1 s

power & handling

Power-to-weight ratio 7.77 lb/hp 10.34 lb/hp
Maximum hp 550 HP @ 5,500 RPM 402 HP @ 5,000 RPM
Maximum torque 590 ft-lb @ 2,000 RPM 443 ft-lb @ 1,600 RPM
Steering system Rack and pinion Rack and pinion

engine

Displacement 5,461 cc 5,461 cc
Cylinders V8 V8
Air compressor Turbocharger Turbocharger
Fuels
Gas
Compression ratio 10:1 10.7:1
Bore/stroke 3.9 in / 3.6 in 3.66 in / 3.39 in
Valvetrain DOHC DOHC
Valves per cylinder 4 4
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