The Comparative Analysis :
Mercedes SL 65 AMG SPEEDSHIFT PLUS (12 - 16) vs. Audi R8 Spyder 4.2 FSI quattro (10 - 12)
€ 238,800

€ 123,200

€ 238,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 123,200
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ considerably. The Mercedes SL 65 AMG is 7.3 inches longer, 1.1 inches narrower and 2.8 inches taller than the Audi R8 Spyder 4.2 FSI.
Mercedes SL 65 AMG
Audi R8 Spyder 4.2 FSI
51.8
73.9
82.6
49
75
79.9
73.9 in
Width
75 in
82.6 in
Width Incl. Mirrors
79.9 in
51.8 in
Height
49 in
101.8
181.8
104.3
174.4
181.8 in
Length
174.4 in
101.8 in
Wheelbase
104.3 in
Vehicle Weight
Mercedes SL 65 AMG
Audi R8 Spyder 4.2 FSI
4299 lb
Curb Weight
3825 lb
5038 lb
Gross Vehicle
Weight
Weight
4321 lb

Weight Difference:
474 lb
11.03 %

General
Mercedes SL 65 AMG
Audi R8 Spyder 4.2 FSI
R231
Generation
42
Roadster
Car Body Style
Roadster
Mid-Grade Unleaded
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Permanent all-wheel drive (AWD)

7-speed automatic transmission
Transmission
6-speed manual transmission
Engine
Mercedes SL 65 AMG
Audi R8 Spyder 4.2 FSI
V12 gasoline engine with two turbochargers (biturbo)
Engine Type
V8 gasoline engine (naturally aspirated engine)
Mercedes-Benz M 279
Engine Series
M 279.981
Engine Code
CNDA

4
Valves
4
12
Cylinders
8
6 L / 294 cu in
Displacement
4.2 L / 206 cu in
621 hp
at 4800 rpm
Power
424 hp
at 7900 rpm
Mercedes SL 65 AMG
621 hp
424 hp
Audi R8 Spyder 4.2 FSI
738 lb‑ft
at 2300 rpm
Max. Torque
317 lb‑ft
at 4500 rpm
Mercedes SL 65 AMG
738 lb‑ft
317 lb‑ft
Audi R8 Spyder 4.2 FSI
Performance
Mercedes SL 65 AMG
Audi R8 Spyder 4.2 FSI
155 mph
Maximum Speed
186 mph
4 sec
Acceleration 0 to 62 mph
4.8 sec
62 mph
62
mph
mph
184 ft
0.000 sec

Mercedes SL 65 AMG
62 mph
62
mph
mph
220 ft
0.000 sec

Audi R8 Spyder 4.2 FSI
▶ REPLAY
6.92 lb/hp
Weight-to-Power Ratio
9.02 lb/hp
Mercedes SL 65 AMG
6.92 lb/hp
9.02 lb/hp
Audi R8 Spyder 4.2 FSI
Fuel Economy / Emissions
Mercedes SL 65 AMG
Audi R8 Spyder 4.2 FSI
Fuel Economy
20 mpg
combined
16 mpg
Mercedes SL 65 AMG
20 mpg
16 mpg
Audi R8 Spyder 4.2 FSI
14 mpg
city
11 mpg
28 mpg
highway
No data
19.8 gal
Fuel Tank Capacity
21.1 gal
402 mi
Range
345 mi
Mercedes SL 65 AMG
402 mi
345 mi
Audi R8 Spyder 4.2 FSI
Environmental Impact
219.8 kWh
Total Energy Consumption
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
272.8 kWh
Mercedes SL 65 AMG
219.8 kWh
272.8 kWh
Audi R8 Spyder 4.2 FSI
Euro 5 / Euro 6
Emission Standard
Euro 5
435 g/mi (NEFZ)
CO2 Emissions
542 g/mi (NEFZ)
Practical Convenience
Mercedes SL 65 AMG
Audi R8 Spyder 4.2 FSI
2
Doors
2
2
No. of Seats
2
739 lb
Maximum Payload
496 lb
14.3 cu ft
Trunk Volume
2.8 cu ft






No data
Cargo Volume (Seats Down)
No data