Road Tests Real world tests of S 63 AMG Coupé vs Audi S8

0-60mph

S63 AMG
5.1 s
Audi S8
3.9 s

Top speed

S63 AMG
155 mph
Audi S8
155 mph

Differences What are the advantages of each

Car-autoblog view of Mercedes-Benz S 63 AMG Coupé

Reasons to consider the
Mercedes-Benz S63 AMG

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Significantly more torque 663 ft-lb @ 3,750 RPM vs 481 ft-lb @ 5,500 RPM Around 40% stronger engine from a stand-still; more acceleration power
More expensive sticker price $140k vs $110k More than 25% more expensive harder to own
More powerful engine 577 HP @ 5,500 RPM vs 520 HP @ 6,000 RPM More than 10% stronger engine
Bigger engine 5,461 cc vs 3,993 cc More than 35% bigger engine
Front view of Audi S8

Reasons to consider the
Audi S8

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Faster to 60mph 3.9 s vs 5.1 s Around 25% faster to 60mph

Specifications Full list of technical specs

general

S 63 AMG Coupé  vs
Audi S8 
Brand Mercedes-Benz Audi
Price 139,500 110,000
Type of car Production car Production car
Year 2014 2014
City mileage 15 MPG 15 MPG
Highway mileage 23 MPG 26 MPG

transmission

Drivetrain 4x4 Quattro AWD
Gearing Traditional Traditional
# of gears 7 8

suspension, wheels & brakes

Front brakes 15.39 in Ventilated Disc Disc
Rear brakes 14.41 in Ventilated Disc Disc
Front wheels 255/40 20 508/? 229
Rear wheels 483/? 241 508/? 229

physical dimensions

Curb weight 4,806 lb 4,642 lb
Width 74.8 in 76.8 in
Height 58.8 in 57.5 in
Length 206.5 in 202.4 in
Wheelbase 124.6 in 117.7 in

road tests

S 63 AMG Coupé  vs
Audi S8 
Top speed 155 mph 155 mph
0-60mph 5.1 s 3.9 s

power & handling

Power-to-weight ratio 8.33 lb/hp 8.93 lb/hp
Maximum hp 577 HP @ 5,500 RPM 520 HP @ 6,000 RPM
Maximum torque 663 ft-lb @ 3,750 RPM 481 ft-lb @ 5,500 RPM
Steering system Unknown Rack and pinion

engine

Displacement 5,461 cc 3,993 cc
Cylinders V8 V8
Fuels
Gas
Compression ratio 10:1 10.1:1
Bore/stroke 3.86 in / 3.56 in 3.33 in / 3.5 in
Valvetrain DOHC DOHC
Valves per cylinder 4 4
Mercedes-Benz S63 AMG
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Audi S8
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