The Comparative Analysis :
ALPINA B4 Bi-Turbo Convertible Switch-Tronic (14 - 17) vs. Audi RS4 Convertible (06 - 09)
€ 75,900

€ 85,100

€ 75,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 85,100
ⓘ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 ALPINA B4 Bi-Turbo Cabrio is 3.3 inches longer, 0.4 inches wider and 0.4 inches lower than the Audi RS4 Convertible.
ALPINA B4 Bi-Turbo Cabrio
Audi RS4 Convertible
54.3
71.9
79.7
54.8
71.4
76.1
71.9 in
Width
71.4 in
79.7 in
Width Incl. Mirrors
76.1 in
54.3 in
Height
54.8 in
110.6
182.7
104.3
179.3
182.7 in
Length
179.3 in
110.6 in
Wheelbase
104.3 in
Vehicle Weight
ALPINA B4 Bi-Turbo Cabrio
Audi RS4 Convertible
4222 lb
Curb Weight
4233 lb
5071 lb
Gross Vehicle
Weight
Weight
5082 lb

Weight Difference:
11 lb
0.26 %

General
ALPINA B4 Bi-Turbo Cabrio
Audi RS4 Convertible
F33
Generation
B7 (8E)
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded

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

8-speed automatic transmission
Transmission
6-speed manual transmission
Engine
ALPINA B4 Bi-Turbo Cabrio
Audi RS4 Convertible
Straight-six gasoline engine with two turbochargers (biturbo)
Engine Type
V8 gasoline engine (naturally aspirated engine)
N55-R20
Engine Code
BNS
4
Valves
4
6
Cylinders
8
3 L / 147 cu in
Displacement
4.2 L / 206 cu in
404 hp
at 5500 rpm
Power
414 hp
at 7800 rpm
ALPINA B4 Bi-Turbo Cabrio
404 hp
414 hp
Audi RS4 Convertible
443 lb‑ft
at 3000 rpm
Max. Torque
317 lb‑ft
at 5500 rpm
ALPINA B4 Bi-Turbo Cabrio
443 lb‑ft
317 lb‑ft
Audi RS4 Convertible
Performance
ALPINA B4 Bi-Turbo Cabrio
Audi RS4 Convertible
187 mph
Maximum Speed
155 mph
4.5 sec
Acceleration 0 to 62 mph
4.9 sec
62 mph
62
mph
mph
207 ft
0.000 sec

ALPINA B4 Bi-Turbo Cabrio
62 mph
62
mph
mph
223 ft
0.000 sec

Audi RS4 Convertible
▶ REPLAY
10.45 lb/hp
Weight-to-Power Ratio
10.22 lb/hp
ALPINA B4 Bi-Turbo Cabrio
10.45 lb/hp
10.22 lb/hp
Audi RS4 Convertible
Fuel Economy / Emissions
ALPINA B4 Bi-Turbo Cabrio
Audi RS4 Convertible
Fuel Economy
29 mpg
combined
17 mpg
ALPINA B4 Bi-Turbo Cabrio
29 mpg
17 mpg
Audi RS4 Convertible
22 mpg
city
11 mpg
No data
highway
No data
15.9 gal
Fuel Tank Capacity
16.6 gal
466 mi
Range
281 mi
ALPINA B4 Bi-Turbo Cabrio
466 mi
281 mi
Audi RS4 Convertible
Environmental Impact
151.6 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).
263.3 kWh
ALPINA B4 Bi-Turbo Cabrio
151.6 kWh
263.3 kWh
Audi RS4 Convertible
Euro 6b (NEFZ)
Emission Standard
Euro 4
299 g/mi (NEFZ)
CO2 Emissions
538 g/mi (NEFZ)
Practical Convenience
ALPINA B4 Bi-Turbo Cabrio
Audi RS4 Convertible
2
Doors
2
4
No. of Seats
4
849 lb
Maximum Payload
849 lb
10.5 cu ft
Trunk Volume
8.9 cu ft








No data
Cargo Volume (Seats Down)
No data