The Comparative Analysis :
Audi R8 GT Spyder 5.2 FSI quattro R-tronic (11 - 12) vs. Mercedes SL 400 9G-TRONIC (16 - ..)
€ 207,800

€ 99,300

€ 207,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 99,300
ⓘ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 GT Spyder 5.2 FSI is 7.8 inches shorter, 1.1 inches wider and 2.8 inches lower than the Mercedes SL 400.
Audi R8 GT Spyder 5.2 FSI
Mercedes SL 400
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
174.6
101.8
182.3
174.6 in
Length
182.3 in
104.3 in
Wheelbase
101.8 in
Vehicle Weight
Audi R8 GT Spyder 5.2 FSI
Mercedes SL 400
3781 lb
Curb Weight
3825 lb
4277 lb
Gross Vehicle
Weight
Weight
4663 lb

Weight Difference:
44 lb
1.15 %

General
Audi R8 GT Spyder 5.2 FSI
Mercedes SL 400
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
9-speed automatic transmission
Engine
Audi R8 GT Spyder 5.2 FSI
Mercedes SL 400
V10 gasoline engine with two turbochargers (biturbo)
Engine Type
V6 gasoline engine with two turbochargers (biturbo)
Engine Series
Mercedes-Benz M 276
CMPA
Engine Code
M 276.825

4
Valves
4
10
Cylinders
6
5.2 L / 254 cu in
Displacement
3 L / 147 cu in
552 hp
at 8000 rpm
Power
362 hp
at 5500 rpm
Audi R8 GT Spyder 5.2 FSI
552 hp
362 hp
Mercedes SL 400
398 lb‑ft
at 6500 rpm
Max. Torque
369 lb‑ft
at 2000 rpm
Audi R8 GT Spyder 5.2 FSI
398 lb‑ft
369 lb‑ft
Mercedes SL 400
Performance
Audi R8 GT Spyder 5.2 FSI
Mercedes SL 400
197 mph
Maximum Speed
155 mph
3.8 sec
Acceleration 0 to 62 mph
4.9 sec
62 mph
62
mph
mph
174 ft
0.000 sec

Audi R8 GT Spyder 5.2 FSI
62 mph
62
mph
mph
223 ft
0.000 sec

Mercedes SL 400
▶ REPLAY
6.85 lb/hp
Weight-to-Power Ratio
10.57 lb/hp
Audi R8 GT Spyder 5.2 FSI
6.85 lb/hp
10.57 lb/hp
Mercedes SL 400
Fuel Economy / Emissions
Audi R8 GT Spyder 5.2 FSI
Mercedes SL 400
Fuel Economy
17 mpg
combined
31 mpg
Audi R8 GT Spyder 5.2 FSI
17 mpg
31 mpg
Mercedes SL 400
11 mpg
city
22 mpg
No data
highway
39 mpg
21.1 gal
Fuel Tank Capacity
17.2 gal
350 mi
Range
524 mi
Audi R8 GT Spyder 5.2 FSI
350 mi
524 mi
Mercedes SL 400
Environmental Impact
269.1 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).
145.8 kWh
Audi R8 GT Spyder 5.2 FSI
269.1 kWh
145.8 kWh
Mercedes SL 400
Euro 5
Emission Standard
Euro 6
534 g/mi (NEFZ)
CO2 Emissions
282 g/mi (NEFZ)
Practical Convenience
Audi R8 GT Spyder 5.2 FSI
Mercedes SL 400
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