2011 Audi
A8 L 4.2
vs. 2011 Mercedes-Benz
S65 AMG

2011 Audi A8 L 4.2

10.0

Winner

Audi A8 L 4.2

starting from

$84,875

Reasons to buy the Audi A8 L 4.2

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Quite expensive
$84,875
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Fantastic range on the highway
643 miles
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Average highway fuel efficiency
27 mpg
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Good range in the city
405 miles
2011 Mercedes-Benz S65 AMG

7.8

starting from

$211,975
"A serene ride that are second to none."
edmunds.com | talking about the S-Class's noise
"Premium audio system suitable to high standard."
edmunds.com | talking about the S-Class's stereo

Reasons to buy the Mercedes-Benz S65 AMG

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Rear air conditioning
Standard
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Quite powerful
621 HP @ 4,800 RPM
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Sporty performance
8.1 lb/hp
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Turbocharged engine improves performance
Cost 5.6 vs 10.0
2011 Audi A8 L 4.2 Winner: A8 L 4.2
[details]
  • The best price we've seen is $127,100 cheaper (2.5x less), $84,875 vs $211,975
  • Gets more than 40% more miles per gallon in the city, 17 mpg vs 12 mpg
Luxury Features 10.0 vs 10.0
Too close to call
[details]
  • Both come standard with sun roofs
Crash Test Ratings - vs -
Missing information
[details]
Safety Features 10.0 vs -
Missing information
[details]
  • Both have a good number of airbags for safety but the A8 L 4.2 is particularly good (including Knee)
  • Child door locks come standard
Performance 10.0 vs -
Missing information
[details]
  • Both offer a semi-automatic transmission, a nice perk for this class
  • Caution: these vehicles make wide turns
Practicality 10.0 vs -
Missing information
[details]
  • People mover
  • Both come standard with navigation systems
  • Neither offers a folding rear seat
Entertainment System 10.0 vs -
Missing information
[details]
  • Both come standard with an entertainment system
  • Both come standard with satellite radio
Road Tests - vs 10.0
Missing information
[details]
Overall 7.8 vs 10.0

Cost

Mercedes-Benz
S65 AMG
2011 Mercedes-Benz S65 AMG
2011 Audi A8 L 4.2 Audi
A8 L 4.2
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MSRP $211,975 vs $84,875 Very expensive
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In-city gas mileage 12 mpg vs 17 mpg The A8 L 4.2 has OK city mileage, while the S65 AMG is very inefficient
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basic warranty miles 50,000 mile vs 50,000 mile Average basic warranty
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basic warranty years 4 year vs 4 year Average lasting basic warranty

Luxury Features

Mercedes-Benz
S65 AMG
2011 Mercedes-Benz S65 AMG
2011 Audi A8 L 4.2 Audi
A8 L 4.2
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moon roof Standard vs Standard Both come standard with sun roofs
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power seats Standard vs Standard Both have power seats
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keyless entry Standard vs Standard Both have keyless entry
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leather Standard vs Standard Both come standard with leather interiors

Crash Test Ratings

Mercedes-Benz
S65 AMG
2011 Mercedes-Benz S65 AMG
2011 Audi A8 L 4.2 Audi
A8 L 4.2
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Rollover resistance Unknown vs Unknown
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Front driver crash test Unknown vs Unknown
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Driver side crash test Unknown vs Unknown

Safety Features

Mercedes-Benz
S65 AMG
2011 Mercedes-Benz S65 AMG
2011 Audi A8 L 4.2 Audi
A8 L 4.2
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antilock brakes Standard vs Standard Both come standard with ABS brakes
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Stability control system Yes vs Unknown
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Airbags 6 vs 7 Both have a good number of airbags for safety but the A8 L 4.2 is particularly good (including Knee)
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Rear brakes Disc vs Disc Both have the usual brakes for this class of vehicle
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child door locks Standard vs Standard Child door locks come standard
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Roadside assistance system mbrace vs None

Performance

Mercedes-Benz
S65 AMG
2011 Mercedes-Benz S65 AMG
2011 Audi A8 L 4.2 Audi
A8 L 4.2
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Horsepower 621 HP @ 4,800 RPM vs 372 HP @ 6,800 RPM The S65 AMG is very powerful, while the A8 L 4.2 is only of average power
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Number of gears 5 vs 8 The A8 L 4.2 has more gears, but the S65 AMG has very few
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Transmission Semi-automatic transmission vs Semi-automatic transmission Both offer a semi-automatic transmission, a nice perk for this class
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paddle shifters Standard vs Unknown
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Air compressor Twin turbocharger vs None The S65 AMG's Twin turbocharger lets it maximize power output, quite rare for this class of vehicle
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Power-to-weight ratio 8.1 lb/hp vs 12.0 lb/hp The S65 AMG is a sporty car, while the A8 L 4.2 is just average
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Drivetrain type rear-wheel drive vs all-wheel drive The A8 L 4.2's drivetrain is better for off-road and poor weather driving
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Curb-to-curb turning radius 40.0 ft vs 41.7 ft Caution: these vehicles make wide turns

Practicality

Mercedes-Benz
S65 AMG
2011 Mercedes-Benz S65 AMG
2011 Audi A8 L 4.2 Audi
A8 L 4.2
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Passengers 5 vs 5 People mover
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Highway driving range 452 miles vs 643 miles The A8 L 4.2 gets fantastic distance on a single tank, and the S65 AMG gets OK distance
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Cargo space 16.4 ft3 vs 13.2 ft3 Both have OK cargo room
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front seats 54.2 ft3 vs 52.7 ft3 Both average size front seats
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folding rear seats Not Available vs Not Available Neither offers a folding rear seat
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power outlets Not Available vs Not Available Neither offers power outlets
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roof rails Not Available vs Not Available Neither offers roof rails
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navigation system Standard vs Standard Both come standard with navigation systems
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Cupholders 4 vs Unknown
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front air conditioning Standard vs Standard A/C for hot summer days comes standard

Entertainment System

Mercedes-Benz
S65 AMG
2011 Mercedes-Benz S65 AMG
2011 Audi A8 L 4.2 Audi
A8 L 4.2
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Number of speakers 15 vs Unknown
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Has speed sensitive volume Yes vs Unknown
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CD player Standard vs Standard CD player comes standard
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premium radio Standard vs Standard Both come standard with satellite radio
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Has auxiliary audio input Yes vs Unknown
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Has subwoofer Yes vs Unknown
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entertainment system Standard vs Standard Both come standard with an entertainment system

Road Tests

Mercedes-Benz
S65 AMG
2011 Mercedes-Benz S65 AMG
2011 Audi A8 L 4.2 Audi
A8 L 4.2
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0-60 mph Unknown vs 5.5 seconds
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Braking distance at 60mph Unknown vs 126 ft
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1/4 mile Unknown vs 14.0 s @ 105 mph
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Lateral acceleration Unknown vs 0.95 g
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Top speed Unknown vs 155 mph

Other Vehicles to Consider

2011 Audi A8 L 4.2 2012 Audi A7 Premium A8 L 4.2 vs A7 Premium
2011 Audi A8 L 4.2 2011 Porsche Panamera 4S A8 L 4.2 vs Panamera 4S
2011 Audi A8 L 4.2 2012 Audi R8 GT A8 L 4.2 vs R8 GT
2011 Audi A8 L 4.2 2012 Mercedes-Benz CLS63 AMG A8 L 4.2 vs CLS63 AMG
2011 Audi A8 L 4.2 2011 Lexus LS 460 A8 L 4.2 vs LS 460
2011 Mercedes-Benz S65 AMG 2011 Rolls-Royce Ghost S65 AMG vs Ghost
2011 Mercedes-Benz S65 AMG 2010 Bentley Continental GT S65 AMG vs Continental GT
2011 Mercedes-Benz S65 AMG 2011 Bentley Mulsanne S65 AMG vs Mulsanne
2011 Mercedes-Benz S65 AMG 2010 BMW M6 S65 AMG vs M6
2011 Mercedes-Benz S65 AMG 2011 Lamborghini Gallardo LP 550-2 S65 AMG vs Gallardo LP 550-2

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