Road Tests Real world tests of SLK 55 AMG vs C63 AMG

Differences What are the advantages of each

Side view of Mercedes-Benz SLK 55 AMG

Reasons to consider the
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Lighter curb weight 3,408 lb vs 3,814 lb More than 10% lighter curb weight; less inertia to overcome when accelerating
Car-autoblog view of Mercedes-Benz C63 AMG

Reasons to consider the
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More expensive sticker price $87k vs $50k Around 75% more expensive harder to own
Faster in the quarter mile 12.1 s vs 13 s More than 5% faster at the drag strip
Faster to 60mph 3.7 s vs 4.5 s Around 20% faster to 60mph
More powerful engine 480 HP @ 6,800 RPM vs 415 HP @ 6,800 RPM More than 15% stronger engine
More torque 442 ft-lb @ 5,000 RPM vs 398 ft-lb @ 4,500 RPM More than 10% stronger engine from a stand-still; more acceleration power
Bigger engine 6,208 cc vs 5,461 cc Around 15% bigger engine

Specifications Full list of technical specs

general

SLK 55 AMG  vs
C63 AMG 
Brand Mercedes-Benz Mercedes-Benz
Price 50,000 87,462
Type of car Production car Production car
Year 2012 2012
City mileage 20 MPG 14 MPG
Highway mileage 29 MPG 20 MPG

transmission

Drivetrain RWD RWD
Gearing Traditional Traditional
# of gears 7 7

engine

Displacement 5,461 cc 6,208 cc
Cylinders V8 V8
Fuels
Gas
Compression ratio 12.6:1 11.3:1
Bore/stroke 3.9 in / 3.6 in 4.02 in / 3.72 in

road tests

SLK 55 AMG  vs
C63 AMG 
Top speed 155 mph 155 mph
1/4 mile 13 s 12.1 s
0-60mph 4.5 s 3.7 s

power & handling

Power-to-weight ratio 8.21 lb/hp 7.95 lb/hp
Maximum hp 415 HP @ 6,800 RPM 480 HP @ 6,800 RPM
Maximum torque 398 ft-lb @ 4,500 RPM 442 ft-lb @ 5,000 RPM
Steering system Rack and pinion Rack and pinion

suspension, wheels & brakes

Front brakes Disc Disc
Rear brakes Disc Disc

physical dimensions

Curb weight 3,408 lb 3,814 lb
Width 71.5 in 70.7 in
Height 51.2 in 56.6 in
Length 162.8 in 186 in
Wheelbase 95.7 in 108.9 in
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