The Comparative Analysis :
ALPINA B3 S Convertible (03 - 06) vs. BMW 420d Convertible (14 - 15)
€ 55,000

€ 46,300

€ 55,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 46,300
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The ALPINA B3 S Cabrio is considerably smaller in every dimension. It's 5.9 inches shorter, 2.7 inches narrower and 1.3 inches lower than the BMW 420d Cabrio.
ALPINA B3 S Cabrio
BMW 420d Cabrio
53.2
69.2
80.1
54.5
71.9
79.4
69.2 in
Width
71.9 in
80.1 in
Width Incl. Mirrors
79.4 in
53.2 in
Height
54.5 in
107.3
176.7
110.6
182.6
176.7 in
Length
182.6 in
107.3 in
Wheelbase
110.6 in
Vehicle Weight
ALPINA B3 S Cabrio
BMW 420d Cabrio
3571 lb
Curb Weight
3704 lb
4497 lb
Gross Vehicle
Weight
Weight
4740 lb

Weight Difference:
132 lb
3.56 %

General
ALPINA B3 S Cabrio
BMW 420d Cabrio
E46
Generation
F33
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Diesel

Rear-wheel drive
Drivetrain
Rear-wheel drive

6-speed manual transmission
Transmission
6-speed manual transmission
Engine
ALPINA B3 S Cabrio
BMW 420d Cabrio
Straight-six gasoline engine (naturally aspirated engine)
Engine Type
Straight-four diesel engine with turbocharger
Engine Series
BMW N47
E5/1
Engine Code
N47-D20

4
Valves
4
6
Cylinders
4
3.3 L / 161 cu in
Displacement
2 L / 98 cu in
301 hp
at 6300 rpm
Power
181 hp
at 4000 rpm
ALPINA B3 S Cabrio
301 hp
181 hp
BMW 420d Cabrio
267 lb‑ft
at 4500 rpm
Max. Torque
280 lb‑ft
at 1750 rpm
ALPINA B3 S Cabrio
267 lb‑ft
280 lb‑ft
BMW 420d Cabrio
Performance
ALPINA B3 S Cabrio
BMW 420d Cabrio
164 mph
Maximum Speed
146 mph
5.8 sec
Acceleration 0 to 62 mph
8.2 sec
62 mph
62
mph
mph
266 ft
0.000 sec

ALPINA B3 S Cabrio
62 mph
62
mph
mph
374 ft
0.000 sec

BMW 420d Cabrio
▶ REPLAY
11.86 lb/hp
Weight-to-Power Ratio
20.46 lb/hp
ALPINA B3 S Cabrio
11.86 lb/hp
20.46 lb/hp
BMW 420d Cabrio
Fuel Economy / Emissions
ALPINA B3 S Cabrio
BMW 420d Cabrio
Fuel Economy
21 mpg
combined
46 mpg
ALPINA B3 S Cabrio
21 mpg
46 mpg
BMW 420d Cabrio
14 mpg
city
39 mpg
No data
highway
No data
16.6 gal
Fuel Tank Capacity
15.1 gal
350 mi
Range
695 mi
ALPINA B3 S Cabrio
350 mi
695 mi
BMW 420d Cabrio
Environmental Impact
212.1 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).
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).
104.9 kWh
ALPINA B3 S Cabrio
212.1 kWh
104.9 kWh
BMW 420d Cabrio
Euro 3
Emission Standard
Euro 6b (NEFZ)
431 g/mi (NEFZ)
CO2 Emissions
214 g/mi (NEFZ)
Practical Convenience
ALPINA B3 S Cabrio
BMW 420d Cabrio
2
Doors
2
4
No. of Seats
4
1102 lb
Maximum Payload
1036 lb
8.5 cu ft
Trunk Volume
10.5 cu ft









No data
Cargo Volume (Seats Down)
No data