The Comparative Analysis :
Audi R8 Spyder 4.2 FSI quattro R-tronic (10 - 12) vs. Mercedes SL 350 7G-TRONIC PLUS (11 - 14)
€ 129,100

€ 95,900

€ 129,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 95,900
ⓘ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 Audi R8 Spyder 4.2 FSI is 7.3 inches shorter, 1.1 inches wider and 2.8 inches lower than the Mercedes SL 350.
Audi R8 Spyder 4.2 FSI
Mercedes SL 350
49
75
79.9
51.8
73.9
82.6
75 in
Width
73.9 in
79.9 in
Width Incl. Mirrors
82.6 in
49 in
Height
51.8 in
104.3
174.4
101.8
181.8
174.4 in
Length
181.8 in
104.3 in
Wheelbase
101.8 in
Vehicle Weight
Audi R8 Spyder 4.2 FSI
Mercedes SL 350
3836 lb
Curb Weight
3715 lb
4332 lb
Gross Vehicle
Weight
Weight
4553 lb

Weight Difference:
121 lb
3.15 %

General
Audi R8 Spyder 4.2 FSI
Mercedes SL 350
42
Generation
R231
Roadster
Car Body Style
Roadster
Premium Unleaded
Fuel Type
Mid-Grade Unleaded

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

6-speed automated manual transmission (AMT)
Transmission
7-speed automatic transmission
Engine
Audi R8 Spyder 4.2 FSI
Mercedes SL 350
V8 gasoline engine (naturally aspirated engine)
Engine Type
V6 gasoline engine (naturally aspirated engine)
Engine Series
Mercedes-Benz M 276
CNDA
Engine Code
M 276.954

4
Valves
4
8
Cylinders
6
4.2 L / 206 cu in
Displacement
3.5 L / 171 cu in
424 hp
at 7900 rpm
Power
302 hp
at 6500 rpm
Audi R8 Spyder 4.2 FSI
424 hp
302 hp
Mercedes SL 350
317 lb‑ft
at 4500 rpm
Max. Torque
273 lb‑ft
at 3500 rpm
Audi R8 Spyder 4.2 FSI
317 lb‑ft
273 lb‑ft
Mercedes SL 350
Performance
Audi R8 Spyder 4.2 FSI
Mercedes SL 350
186 mph
Maximum Speed
155 mph
4.8 sec
Acceleration 0 to 62 mph
5.9 sec
62 mph
62
mph
mph
220 ft
0.000 sec

Audi R8 Spyder 4.2 FSI
62 mph
62
mph
mph
269 ft
0.000 sec

Mercedes SL 350
▶ REPLAY
9.05 lb/hp
Weight-to-Power Ratio
12.3 lb/hp
Audi R8 Spyder 4.2 FSI
9.05 lb/hp
12.3 lb/hp
Mercedes SL 350
Fuel Economy / Emissions
Audi R8 Spyder 4.2 FSI
Mercedes SL 350
Fuel Economy
17 mpg
combined
35 mpg
Audi R8 Spyder 4.2 FSI
17 mpg
35 mpg
Mercedes SL 350
12 mpg
city
25 mpg
No data
highway
44 mpg
21.1 gal
Fuel Tank Capacity
17.2 gal
368 mi
Range
594 mi
Audi R8 Spyder 4.2 FSI
368 mi
594 mi
Mercedes SL 350
Environmental Impact
255.7 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).
128.7 kWh
Audi R8 Spyder 4.2 FSI
255.7 kWh
128.7 kWh
Mercedes SL 350
Euro 5
Emission Standard
Euro 5
507 g/mi (NEFZ)
CO2 Emissions
256 g/mi (NEFZ)
Practical Convenience
Audi R8 Spyder 4.2 FSI
Mercedes SL 350
2
Doors
2
2
No. of Seats
2
496 lb
Maximum Payload
838 lb
2.8 cu ft
Trunk Volume
14.3 cu ft






No data
Cargo Volume (Seats Down)
No data