The Comparative Analysis :

ALPINA B4 S Bi-Turbo Coupé Switch-Tronic (17 - 18) vs. BMW 420i Coupé xDrive Steptronic (16 - 17)

€ 75,300
ALPINA B4 S Bi-Turbo Coupé Switch-Tronic (17 - 18) ALPINA B4 S Bi-Turbo Coupé
€ 42,200
 BMW 420i Coupé xDrive Steptronic (16 - 17) BMW 420i Coupé
€ 75,300
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 42,200

ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info

Vehicle Dimensions

Тhere is barely any difference in dimensions between the two vehicles. Both cars are the same width, but the ALPINA B4 S Bi-Turbo Coupé is 0.1 inches longer and 0.7 inches lower.
ALPINA B4 S Bi-Turbo Coupé
BMW 420i Coupé
54.1
Blueprint ALPINA B4 S Bi-Turbo Coupé Switch-Tronic (17 - 18)
71.9
79.7
54.8
Blueprint BMW 420i Coupé xDrive Steptronic (16 - 17)
71.9
79.4
71.9 in
Width
71.9 in
79.7 in
Width Incl. Mirrors
79.4 in
54.1 in
Height
54.8 in
Blueprint ALPINA B4 S Bi-Turbo Coupé Switch-Tronic (17 - 18)
110.6
182.7
Blueprint BMW 420i Coupé xDrive Steptronic (16 - 17)
110.6
182.6
182.7 in
Length
182.6 in
110.6 in
Wheelbase
110.6 in

Vehicle Weight

ALPINA B4 S Bi-Turbo Coupé
BMW 420i Coupé
3726 lb
Curb Weight
3627 lb
4707 lb
Gross Vehicle
Weight
4608 lb
ALPINA B4 S Bi-Turbo Coupé Switch-Tronic (17 - 18)
Weight Difference:
99 lb
2.66 %
BMW 420i Coupé xDrive Steptronic (16 - 17)

General

ALPINA B4 S Bi-Turbo Coupé
BMW 420i Coupé
F32
Generation
F32
Coupe
Car Body Style
Coupe
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Permanent all-wheel drive (AWD)
8-speed automatic transmission
Transmission
8-speed automatic transmission

Engine

ALPINA B4 S Bi-Turbo Coupé
BMW 420i Coupé
Straight-six gasoline engine with two tur­bo­chargers (bi­turbo)
Engine Type
Straight-four gasoline engine with tur­bo­charger
Engine Series
BMW B48
N55-B30
Engine Code
B48-B20
4
Valves
4
6
Cylinders
4
3 L / 147 cu in
Displacement
2 L / 98 cu in
434 hp
at 5500 rpm
Power
181 hp
at 5000 rpm
ALPINA B4 S Bi-Turbo Coupé
434 hp
181 hp
BMW 420i Coupé
487 lb‑ft
at 3000 rpm
Max. Torque
199 lb‑ft
at 1350 rpm
ALPINA B4 S Bi-Turbo Coupé
487 lb‑ft
199 lb‑ft
BMW 420i Coupé

Performance

ALPINA B4 S Bi-Turbo Coupé
BMW 420i Coupé
190 mph
Maximum Speed
144 mph
4.2 sec
Acceleration 0 to 62 mph
7.8 sec
62 mph 62
mph

190 ft
0.000 sec

ALPINA B4 S Bi-Turbo Coupé

62 mph 62
mph

354 ft
0.000 sec

BMW 420i Coupé

▶ REPLAY
8.59 lb/hp
Weight-to-Power Ratio
20.04 lb/hp
ALPINA B4 S Bi-Turbo Coupé
8.59 lb/hp
20.04 lb/hp
BMW 420i Coupé

Fuel Economy / Emissions

ALPINA B4 S Bi-Turbo Coupé
BMW 420i Coupé
Fuel Economy
30 mpg
combined
40 mpg
ALPINA B4 S Bi-Turbo Coupé
30 mpg
40 mpg
BMW 420i Coupé
22 mpg
city
31 mpg
No data
highway
No data
Kraftstoffanzeige
15.9 gal
Fuel Tank Capacity
15.9 gal
Kraftstoffanzeige
472 mi
Range
632 mi
ALPINA B4 S Bi-Turbo Coupé
472 mi
632 mi
BMW 420i Coupé
Environmental Impact
149.7 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).
111.8 kWh
ALPINA B4 S Bi-Turbo Coupé
149.7 kWh
111.8 kWh
BMW 420i Coupé
Euro 6c (NEFZ)
Emission Standard
Euro 6b (NEFZ)
290 g/mi (NEFZ)
CO2 Emissions
220 g/mi (NEFZ)

Practical Convenience

ALPINA B4 S Bi-Turbo Coupé
BMW 420i Coupé
2
Doors
2
4
No. of Seats
4
981 lb
Maximum Payload
981 lb
12.6 cu ft
Trunk Volume
12.6 cu ft
No data
Cargo Volume (Seats Down)
No data