The Comparative Analysis :

BMW 428i Convertible xDrive Steptronic (14 - 15) vs. ALPINA B3 S Bi-Turbo Convertible Switch-Tronic (10 - 13)

€ 52,900
BMW 428i Convertible xDrive Steptronic (14 - 15) BMW 428i Cabrio
€ 70,600
 ALPINA B3 S Bi-Turbo Convertible Switch-Tronic (10 - 13) ALPINA B3 S Bi-Turbo Convertible
€ 52,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 70,600

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

Vehicle Dimensions

The BMW 428i Cabrio is a little bigger in every dimension. It's 0.6 inches longer, 1.7 inches wider and 0.6 inches taller than the ALPINA B3 S Bi-Turbo Convertible.
BMW 428i Cabrio
ALPINA B3 S Bi-Turbo Convertible
55.1
Blueprint BMW 428i Convertible xDrive Steptronic (14 - 15)
71.9
79.4
54.5
Blueprint ALPINA B3 S Bi-Turbo Convertible Switch-Tronic (10 - 13)
70.2
78
71.9 in
Width
70.2 in
79.4 in
Width Incl. Mirrors
78 in
55.1 in
Height
54.5 in
Blueprint BMW 428i Convertible xDrive Steptronic (14 - 15)
110.6
182.6
Blueprint ALPINA B3 S Bi-Turbo Convertible Switch-Tronic (10 - 13)
108.7
182
182.6 in
Length
182 in
110.6 in
Wheelbase
108.7 in

Vehicle Weight

BMW 428i Cabrio
ALPINA B3 S Bi-Turbo Convertible
4068 lb
Curb Weight
4068 lb
4894 lb
Gross Vehicle
Weight
4806 lb
BMW 428i Convertible xDrive Steptronic (14 - 15)
Weight Difference:
0 lb
0 %
ALPINA B3 S Bi-Turbo Convertible Switch-Tronic (10 - 13)

General

BMW 428i Cabrio
ALPINA B3 S Bi-Turbo Convertible
F33
Generation
E93
Convertible
Car Body Style
Convertible
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 428i Cabrio
ALPINA B3 S Bi-Turbo Convertible
Straight-four gasoline engine with tur­bo­charger
Engine Type
Straight-six gasoline engine with two tur­bo­chargers (bi­turbo)
BMW N20
Engine Series
N20-B20
Engine Code
N54-K30
4
Valves
4
4
Cylinders
6
2 L / 98 cu in
Displacement
3 L / 147 cu in
242 hp
at 5000 rpm
Power
395 hp
at 6000 rpm
BMW 428i Cabrio
242 hp
395 hp
ALPINA B3 S Bi-Turbo Convertible
258 lb‑ft
at 1250 rpm
Max. Torque
398 lb‑ft
at 4500 rpm
BMW 428i Cabrio
258 lb‑ft
398 lb‑ft
ALPINA B3 S Bi-Turbo Convertible

Performance

BMW 428i Cabrio
ALPINA B3 S Bi-Turbo Convertible
155 mph
Maximum Speed
185 mph
6.5 sec
Acceleration 0 to 62 mph
4.9 sec
62 mph 62
mph

295 ft
0.000 sec

BMW 428i Cabrio

62 mph 62
mph

223 ft
0.000 sec

ALPINA B3 S Bi-Turbo Convertible

▶ REPLAY
16.81 lb/hp
Weight-to-Power Ratio
10.3 lb/hp
BMW 428i Cabrio
16.81 lb/hp
10.3 lb/hp
ALPINA B3 S Bi-Turbo Convertible

Fuel Economy / Emissions

BMW 428i Cabrio
ALPINA B3 S Bi-Turbo Convertible
Fuel Economy
34 mpg
combined
24 mpg
BMW 428i Cabrio
34 mpg
24 mpg
ALPINA B3 S Bi-Turbo Convertible
26 mpg
city
17 mpg
No data
highway
No data
Kraftstoffanzeige
15.9 gal
Fuel Tank Capacity
16.6 gal
Kraftstoffanzeige
533 mi
Range
403 mi
BMW 428i Cabrio
533 mi
403 mi
ALPINA B3 S Bi-Turbo Convertible
Environmental Impact
132.6 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).
183.8 kWh
BMW 428i Cabrio
132.6 kWh
183.8 kWh
ALPINA B3 S Bi-Turbo Convertible
Euro 6b (NEFZ)
Emission Standard
Euro 5
262 g/mi (NEFZ)
CO2 Emissions
362 g/mi (NEFZ)

Practical Convenience

BMW 428i Cabrio
ALPINA B3 S Bi-Turbo Convertible
2
Doors
2
4
No. of Seats
4
827 lb
Maximum Payload
739 lb
10.5 cu ft
Trunk Volume
9.9 cu ft
No data
Cargo Volume (Seats Down)
No data