The Comparative Analysis :

BMW 420d Convertible Steptronic (17 - ..) vs. ALPINA B3 S Convertible Switch-Tronic (03 - 06)

€ 53,900
BMW 420d Convertible Steptronic (17 - ..) BMW 420d Cabrio
€ 58,200
 ALPINA B3 S Convertible Switch-Tronic (03 - 06) ALPINA B3 S Cabrio
€ 53,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 58,200

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

Vehicle Dimensions

The BMW 420d Cabrio is considerably bigger in every dimension. It's 5.9 inches longer, 2.7 inches wider and 1.3 inches taller than the ALPINA B3 S Cabrio.
BMW 420d Cabrio
ALPINA B3 S Cabrio
54.5
Blueprint BMW 420d Convertible Steptronic (17 - ..)
71.9
79.4
53.2
Blueprint ALPINA B3 S Convertible Switch-Tronic (03 - 06)
69.2
80.1
71.9 in
Width
69.2 in
79.4 in
Width Incl. Mirrors
80.1 in
54.5 in
Height
53.2 in
Blueprint BMW 420d Convertible Steptronic (17 - ..)
110.6
182.6
Blueprint ALPINA B3 S Convertible Switch-Tronic (03 - 06)
107.3
176.7
182.6 in
Length
176.7 in
110.6 in
Wheelbase
107.3 in

Vehicle Weight

BMW 420d Cabrio
ALPINA B3 S Cabrio
4057 lb
Curb Weight
3627 lb
4916 lb
Gross Vehicle
Weight
4553 lb
BMW 420d Convertible Steptronic (17 - ..)
Weight Difference:
430 lb
10.6 %
ALPINA B3 S Convertible Switch-Tronic (03 - 06)

General

BMW 420d Cabrio
ALPINA B3 S Cabrio
F33
Generation
E46
Convertible
Car Body Style
Convertible
Diesel
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
8-speed automatic transmission
Transmission
5-speed automatic transmission

Engine

BMW 420d Cabrio
ALPINA B3 S Cabrio
Straight-four diesel engine with tur­bo­charger
Engine Type
Straight-six gasoline engine (nat­u­ral­ly as­pi­rat­ed engine)
BMW B47
Engine Series
B47-D20
Engine Code
E5/1
4
Valves
4
4
Cylinders
6
2 L / 98 cu in
Displacement
3.3 L / 161 cu in
187 hp
at 4000 rpm
Power
301 hp
at 6300 rpm
BMW 420d Cabrio
187 hp
301 hp
ALPINA B3 S Cabrio
295 lb‑ft
at 1750 rpm
Max. Torque
267 lb‑ft
at 4500 rpm
BMW 420d Cabrio
295 lb‑ft
267 lb‑ft
ALPINA B3 S Cabrio

Performance

BMW 420d Cabrio
ALPINA B3 S Cabrio
142 mph
Maximum Speed
161 mph
8.1 sec
Acceleration 0 to 62 mph
6.6 sec
62 mph 62
mph

371 ft
0.000 sec

BMW 420d Cabrio

62 mph 62
mph

302 ft
0.000 sec

ALPINA B3 S Cabrio

▶ REPLAY
21.7 lb/hp
Weight-to-Power Ratio
12.05 lb/hp
BMW 420d Cabrio
21.7 lb/hp
12.05 lb/hp
ALPINA B3 S Cabrio

Fuel Economy / Emissions

BMW 420d Cabrio
ALPINA B3 S Cabrio
Fuel Economy
49 mpg
combined
20 mpg
BMW 420d Cabrio
49 mpg
20 mpg
ALPINA B3 S Cabrio
44 mpg
city
13 mpg
No data
highway
No data
Kraftstoffanzeige
15.1 gal
Fuel Tank Capacity
16.6 gal
Kraftstoffanzeige
738 mi
Range
332 mi
BMW 420d Cabrio
738 mi
332 mi
ALPINA B3 S Cabrio
Environmental Impact
98.8 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).
223.5 kWh
BMW 420d Cabrio
98.8 kWh
223.5 kWh
ALPINA B3 S Cabrio
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 3
251 g/mi (WLTP)
CO2 Emissions
455 g/mi (NEFZ)

Practical Convenience

BMW 420d Cabrio
ALPINA B3 S Cabrio
2
Doors
2
4
No. of Seats
4
860 lb
Maximum Payload
1102 lb
10.5 cu ft
Trunk Volume
8.5 cu ft
No data
Cargo Volume (Seats Down)
No data