The Comparative Analysis :

BMW 420i Coupé xDrive Steptronic (17 - ..) vs. ALPINA B3 Bi-Turbo Coupé Switch-Tronic (07 - 10)

€ 45,900
BMW 420i Coupé xDrive Steptronic (17 - ..) BMW 420i Coupé
€ 60,800
 ALPINA B3 Bi-Turbo Coupé Switch-Tronic (07 - 10) ALPINA B3 Bi-Turbo Coupé
€ 45,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 60,800

ⓘ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 BMW 420i Coupé is 2.3 inches longer, 1.7 inches wider and 0.1 inches lower than the ALPINA B3 Bi-Turbo Coupé.
BMW 420i Coupé
ALPINA B3 Bi-Turbo Coupé
54.8
Blueprint BMW 420i Coupé xDrive Steptronic (17 - ..)
71.9
79.4
54.9
Blueprint ALPINA B3 Bi-Turbo Coupé Switch-Tronic (07 - 10)
70.2
78
71.9 in
Width
70.2 in
79.4 in
Width Incl. Mirrors
78 in
54.8 in
Height
54.9 in
Blueprint BMW 420i Coupé xDrive Steptronic (17 - ..)
110.6
182.6
Blueprint ALPINA B3 Bi-Turbo Coupé Switch-Tronic (07 - 10)
108.7
180.3
182.6 in
Length
180.3 in
110.6 in
Wheelbase
108.7 in

Vehicle Weight

BMW 420i Coupé
ALPINA B3 Bi-Turbo Coupé
3627 lb
Curb Weight
3605 lb
4608 lb
Gross Vehicle
Weight
4497 lb
BMW 420i Coupé xDrive Steptronic (17 - ..)
Weight Difference:
22 lb
0.61 %
ALPINA B3 Bi-Turbo Coupé Switch-Tronic (07 - 10)

General

BMW 420i Coupé
ALPINA B3 Bi-Turbo Coupé
F32
Generation
E92
Coupe
Car Body Style
Coupe
Premium Unleaded
Fuel Type
Premium Unleaded
Permanent all-wheel drive (AWD)
Drivetrain
Rear-wheel drive
8-speed automatic transmission
Transmission
6-speed automatic transmission

Engine

BMW 420i Coupé
ALPINA B3 Bi-Turbo Coupé
Straight-four gasoline engine with tur­bo­charger
Engine Type
Straight-six gasoline engine with two tur­bo­chargers (bi­turbo)
BMW B48
Engine Series
B48-B20
Engine Code
N54-K20
4
Valves
4
4
Cylinders
6
2 L / 98 cu in
Displacement
3 L / 147 cu in
181 hp
at 5000 rpm
Power
355 hp
at 5500 rpm
BMW 420i Coupé
181 hp
355 hp
ALPINA B3 Bi-Turbo Coupé
199 lb‑ft
at 1350 rpm
Max. Torque
369 lb‑ft
at 3800 rpm
BMW 420i Coupé
199 lb‑ft
369 lb‑ft
ALPINA B3 Bi-Turbo Coupé

Performance

BMW 420i Coupé
ALPINA B3 Bi-Turbo Coupé
144 mph
Maximum Speed
177 mph
7.8 sec
Acceleration 0 to 62 mph
4.8 sec
62 mph 62
mph

354 ft
0.000 sec

BMW 420i Coupé

62 mph 62
mph

220 ft
0.000 sec

ALPINA B3 Bi-Turbo Coupé

▶ REPLAY
20.04 lb/hp
Weight-to-Power Ratio
10.15 lb/hp
BMW 420i Coupé
20.04 lb/hp
10.15 lb/hp
ALPINA B3 Bi-Turbo Coupé

Fuel Economy / Emissions

BMW 420i Coupé
ALPINA B3 Bi-Turbo Coupé
Fuel Economy
36 mpg
combined
24 mpg
BMW 420i Coupé
36 mpg
24 mpg
ALPINA B3 Bi-Turbo Coupé
31 mpg
city
17 mpg
No data
highway
No data
Kraftstoffanzeige
15.9 gal
Fuel Tank Capacity
16.6 gal
Kraftstoffanzeige
574 mi
Range
403 mi
BMW 420i Coupé
574 mi
403 mi
ALPINA B3 Bi-Turbo Coupé
Environmental Impact
123.1 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).
183.8 kWh
BMW 420i Coupé
123.1 kWh
183.8 kWh
ALPINA B3 Bi-Turbo Coupé
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 4
285 g/mi (WLTP)
CO2 Emissions
373 g/mi (NEFZ)

Practical Convenience

BMW 420i Coupé
ALPINA B3 Bi-Turbo Coupé
2
Doors
2
4
No. of Seats
4
981 lb
Maximum Payload
893 lb
12.6 cu ft
Trunk Volume
12.2 cu ft
No data
Cargo Volume (Seats Down)
No data