The Comparative Analysis :
Audi S4 Convertible (05 - 09) vs. BMW 420i Convertible (16 - 17)
€ 64,600

€ 44,700

€ 64,600
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 44,700
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ slightly. The Audi S4 Convertible is 2.6 inches shorter, 1.9 inches narrower and 0.3 inches taller than the BMW 420i Cabrio.
Audi S4 Convertible
BMW 420i Cabrio
54.8
70
76.1
54.5
71.9
79.4
70 in
Width
71.9 in
76.1 in
Width Incl. Mirrors
79.4 in
54.8 in
Height
54.5 in
104.3
180
110.6
182.6
180 in
Length
182.6 in
104.3 in
Wheelbase
110.6 in
Vehicle Weight
Audi S4 Convertible
BMW 420i Cabrio
4255 lb
Curb Weight
3913 lb
5104 lb
Gross Vehicle
Weight
Weight
4784 lb

Weight Difference:
342 lb
8.04 %

General
Audi S4 Convertible
BMW 420i Cabrio
B7 (8E)
Generation
F33
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded

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

6-speed manual transmission
Transmission
6-speed manual transmission
Engine
Audi S4 Convertible
BMW 420i Cabrio
V8 gasoline engine (naturally aspirated engine)
Engine Type
Straight-four gasoline engine with turbocharger
Engine Series
BMW B48
BBK
Engine Code
B48-B20

5
Valves
4
8
Cylinders
4
4.2 L / 206 cu in
Displacement
2 L / 98 cu in
339 hp
at 7000 rpm
Power
181 hp
at 5000 rpm
Audi S4 Convertible
339 hp
181 hp
BMW 420i Cabrio
302 lb‑ft
at 3500 rpm
Max. Torque
199 lb‑ft
at 1350 rpm
Audi S4 Convertible
302 lb‑ft
199 lb‑ft
BMW 420i Cabrio
Performance
Audi S4 Convertible
BMW 420i Cabrio
155 mph
Maximum Speed
143 mph
5.9 sec
Acceleration 0 to 62 mph
8.2 sec
62 mph
62
mph
mph
269 ft
0.000 sec

Audi S4 Convertible
62 mph
62
mph
mph
374 ft
0.000 sec

BMW 420i Cabrio
▶ REPLAY
12.55 lb/hp
Weight-to-Power Ratio
21.62 lb/hp
Audi S4 Convertible
12.55 lb/hp
21.62 lb/hp
BMW 420i Cabrio
Fuel Economy / Emissions
Audi S4 Convertible
BMW 420i Cabrio
Fuel Economy
17 mpg
combined
38 mpg
Audi S4 Convertible
17 mpg
38 mpg
BMW 420i Cabrio
12 mpg
city
29 mpg
No data
highway
No data
16.6 gal
Fuel Tank Capacity
15.9 gal
284 mi
Range
601 mi
Audi S4 Convertible
284 mi
601 mi
BMW 420i Cabrio
Environmental Impact
261.5 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).
117.5 kWh
Audi S4 Convertible
261.5 kWh
117.5 kWh
BMW 420i Cabrio
Euro 4
Emission Standard
Euro 6b (NEFZ)
533 g/mi (NEFZ)
CO2 Emissions
233 g/mi (NEFZ)
Practical Convenience
Audi S4 Convertible
BMW 420i Cabrio
2
Doors
2
4
No. of Seats
4
849 lb
Maximum Payload
871 lb
8.9 cu ft
Trunk Volume
10.5 cu ft








No data
Cargo Volume (Seats Down)
No data