Car comparison

Alpina B3 Touring (G21) 3.0vsBMW M3 Touring (G81) Competition 3.0

Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.

New comparison

Alpina B3 Touring (G21)

3.0

462 hp2993 ccGasolineAWDAutomaticTwin-turboWagon / estate2019-2022
VS

BMW M3 Touring (G81)

Competition 3.0

510 hp2993 ccGasolineAWDAutomaticTurbochargedWagon / estate2022-2024

Comparison overview

Use the estimates as comparison hints and verify exact figures before making decisions.

Best choices

Alpina B3 Touring (G21) 3.0

  • Fastest top speed
    300 km/h
    186 mph
  • Highest torque
    700 Nm
    516 lb-ft
  • Lightest
    1,865 kg
    4,112 lb
  • Lowest combined fuel consumption
    9.8 L/100 km
    24.0 mpg US
    28.8 mpg UK
  • Best estimated range
    602 km
    374 mi
  • Largest trunk
    500 L
  • Best overall score
    86/100
  • Best performance score
    87/100
  • Best economy score
    81/100
  • Best practicality score
    84/100

Specification comparison

Specification comparison
ModelAlpinaB3 Touring (G21)3.0BMWM3 Touring (G81)Competition 3.0
Power
462hp345kW
510hp380kW
Torque
700Nm516lb-ft
650Nm479lb-ft
Curb weight
1,865kg4,112lb
1,865kg4,112lb
Gross weight
2,490kg5,490lb
2,370kg5,225lb
Top speed
300 km/h
186 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
45.6s99% target: 297 km/h / 185 mph
Calculated
48.3s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
3.9s
3.6s
0-200 km/h
10.7s
Calculated
12.9s
0-60 mph
3.7s
Calculated
3.4s
Calculated
Fuel consumption
9.8L/100 km24mpg US28.8mpg UK
10.4L/100 km22.6mpg US27.2mpg UK
Fuel consumption city
13.2L/100 km17.8mpg US21.4mpg UK
-
Fuel consumption highway
7.9L/100 km29.8mpg US35.8mpg UK
-
Quarter mile
11.6s
Calculated
11.7s
Calculated
Power-to-weight
248hp/t185kW/t112hp/1000 lb
Calculated
273hp/t204kW/t124hp/1000 lb
Calculated
Torque-to-weight
375Nm/t251lb-ft/ton
Calculated
349Nm/t233lb-ft/ton
Calculated
Estimated range
602km374mi
Calculated
567km353mi
Calculated
Displacement
2,993cc183cu in
2,993cc183cu in
Length
4,719mm186in
4,794mm189in
Width
2,068mm81in
1,903mm75in
Height
1,438mm57in
1,436mm57in
Wheelbase
2,851mm112in
2,857mm112in
Front track
1,577mm62in
1,617mm64in
Rear track
1,572mm62in
1,605mm63in
Ground clearance-
122mm5in
Trunk volume
500L
500L
Max trunk volume
1,510L
1,510L
Doors
5
5
Seats
5
5
Fuel tank
59L
59L
CO2 emissions
224g/km
-

Performance charts

Use the estimates as comparison hints and verify exact figures before making decisions.

Dyno simulation

Estimated stock-style power and torque curves by engine speed.

Alpina B3 Touring (G21) 3.0BMW M3 Touring (G81) Competition 3.0PowerTorque
  • Alpina B3 Touring (G21) 3.0: Power / Torque
  • BMW M3 Touring (G81) Competition 3.0: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AlpinaB3 Touring (G21)3.05,000-7,000 rpm3,000-4,250 rpm7,250 rpm
BMWM3 Touring (G81)Competition 3.06,250 rpm2,750-5,500 rpm6,500 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAlpinaB3 Touring (G21)3.0BMWM3 Touring (G81)Competition 3.0
Acceleration checkpoints
0-60 mph
0-97 km/h
3.7 s
3.4 s
0-100 km/h
0-62 mph
3.9 s
3.6 s
0-200 km/h
0-124 mph
10.7 s
12.9 s
Top speed
300 km/h
186 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Drag race simulation
60 ft
18 m
2.1 s
1.9 s
330 ft
101 m
5.3 s
5.0 s
1/8 mile
201 m
7.7 s
7.5 s
1000 ft
305 m
9.8 s
9.8 s
1/4 mile
402 m
11.6 s
11.7 s
Trap speed
1/4 mile
402 m
209 km/h
130 mph
192 km/h
119 mph

Power comparison

Bar comparison chart for Power. Higher is better · hp / kW

Chart data table
VehicleValue
AlpinaB3 Touring (G21)3.0
462 hp
345 kW
BMWM3 Touring (G81)Competition 3.0
510 hp
380 kW

BMW M3 Touring (G81) Competition 3.0 has 48 hp more than Alpina B3 Touring (G21) 3.0.

The biggest power difference is between Alpina B3 Touring (G21) 3.0 and BMW M3 Touring (G81) Competition 3.0: 48 hp (36 kW).

Torque comparison

Bar comparison chart for Torque. Higher is better · Nm / lb-ft

Chart data table
VehicleValue
AlpinaB3 Touring (G21)3.0
700 Nm
516 lb-ft
BMWM3 Touring (G81)Competition 3.0
650 Nm
479 lb-ft

Curb weight comparison

Bar comparison chart for Curb weight. Lower is better · kg / lb

Chart data table
VehicleValue
AlpinaB3 Touring (G21)3.0
1,865 kg
4,112 lb
BMWM3 Touring (G81)Competition 3.0
1,865 kg
4,112 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
VehicleValue
AlpinaB3 Touring (G21)3.0
300 km/h
186 mph
BMWM3 Touring (G81)Competition 3.0
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph

0-100 km/h comparison

Bar comparison chart for 0-100 km/h. Lower is better · seconds

Chart data table
VehicleValue
AlpinaB3 Touring (G21)3.03.9 s
BMWM3 Touring (G81)Competition 3.03.6 s

The biggest 0-100 km/h difference is between BMW M3 Touring (G81) Competition 3.0 and Alpina B3 Touring (G21) 3.0: 0.3 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
VehicleValue
AlpinaB3 Touring (G21)3.0
9.8 L/100 km
24.0 mpg US
28.8 mpg UK
BMWM3 Touring (G81)Competition 3.0
10.4 L/100 km
22.6 mpg US
27.2 mpg UK

The biggest fuel consumption difference is between Alpina B3 Touring (G21) 3.0 and BMW M3 Touring (G81) Competition 3.0: 0.6 L/100 km.

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
VehicleValue
AlpinaB3 Touring (G21)3.0
248 hp/t
185 kW/t
4.0 kg/hp
BMWM3 Touring (G81)Competition 3.0
273 hp/t
204 kW/t
3.7 kg/hp

Estimated range comparison

Bar comparison chart for Estimated range. Higher is better · km / mi

Chart data table
VehicleValue
AlpinaB3 Touring (G21)3.0
602 km
374 mi
BMWM3 Touring (G81)Competition 3.0
567 km
353 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AlpinaB3 Touring (G21)3.0
462 hp
345 kW
3.9 s
300 km/h
186 mph
BMWM3 Touring (G81)Competition 3.0
510 hp
380 kW
3.6 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph

Most attractive quadrant

Scatter chart with performance score on the X axis and practicality score on the Y axis.

Chart data table
VehiclePerformance scorePracticality score
AlpinaB3 Touring (G21)3.0
Power
462 hp
345 kW
0-100 km/h3.9 s
Top speed
300 km/h
186 mph
Doors/seats
5 doors
5 seats
Trunk
500 L
17.7 cu ft
Length
4,719 mm
185.8 in
Height
1,438 mm
56.6 in
BMWM3 Touring (G81)Competition 3.0
Power
510 hp
380 kW
0-100 km/h3.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
500 L
17.7 cu ft
Length
4,794 mm
188.7 in
Height
1,436 mm
56.5 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Performance vs fuel economy data table
VehiclePerformance scoreFuel economy score
AlpinaB3 Touring (G21)3.0
Power
462 hp
345 kW
0-100 km/h3.9 s
Top speed
300 km/h
186 mph
9.8 L/100 km
24.0 mpg US
28.8 mpg UK
BMWM3 Touring (G81)Competition 3.0
Power
510 hp
380 kW
0-100 km/h3.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
10.4 L/100 km
22.6 mpg US
27.2 mpg UK

Alpina B3 Touring (G21) 3.0 is closest to the top-right balance target for performance and fuel economy.

Acceleration vs fuel consumption

Cars closer to the lower-left corner offer a better mix of quick acceleration and low fuel consumption.

Acceleration vs fuel consumption data table
VehicleFuel consumption, L/100 km0-100 km/h, s
AlpinaB3 Touring (G21)3.0
9.8 L/100 km
24.0 mpg US
28.8 mpg UK
3.9 s
BMWM3 Touring (G81)Competition 3.0
10.4 L/100 km
22.6 mpg US
27.2 mpg UK
3.6 s

Power-to-weight vs fuel consumption

The shaded area favors higher power-to-weight with lower combined fuel consumption.

Power-to-weight vs fuel consumption data table
VehiclePower-to-weight, hp/tFuel consumption, L/100 km
AlpinaB3 Touring (G21)3.0
248 hp/t
185 kW/t
4.0 kg/hp
9.8 L/100 km
24.0 mpg US
28.8 mpg UK
BMWM3 Touring (G81)Competition 3.0
273 hp/t
204 kW/t
3.7 kg/hp
10.4 L/100 km
22.6 mpg US
27.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAlpinaB3 Touring (G21)3.0BMWM3 Touring (G81)Competition 3.0
Power
462 hp
345 kW
510 hp
380 kW
Torque
700 Nm
516 lb-ft
650 Nm
479 lb-ft
Acceleration
3.9 s
3.6 s
Top speed
300 km/h
186 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,865 kg
4,112 lb
1,865 kg
4,112 lb
Fuel consumption
9.8 L/100 km
24.0 mpg US
28.8 mpg UK
10.4 L/100 km
22.6 mpg US
27.2 mpg UK
Practicality
Doors/seats
5 doors
5 seats
Trunk
500 L
17.7 cu ft
Length
4,719 mm
185.8 in
Height
1,438 mm
56.6 in
Doors/seats
5 doors
5 seats
Trunk
500 L
17.7 cu ft
Length
4,794 mm
188.7 in
Height
1,436 mm
56.5 in
Range score
602 km
374 mi
567 km
353 mi
CO2 score
224 g/km
-
Trunk score
500 L
17.7 cu ft
500 L
17.7 cu ft
Power-to-weight score
248 hp/t
185 kW/t
4.0 kg/hp
273 hp/t
204 kW/t
3.7 kg/hp
Overall
Fixed score
Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Enter the fuel price in your local currency, for example €/L, $/gal, £/L or any other local currency.

LC = Local Currency

Fuel cost and annual usage
VehicleAlpina B3 Touring (G21) 3.0BMW M3 Touring (G81) Competition 3.0
Consumption9.8 L/100 km24 mpg US28.8 mpg UK10.4 L/100 km22.6 mpg US27.2 mpg UK
Cost / 100 km17.15 LC100 km18.20 LC100 km
Cost / 100 mi27.60 LC100 mi29.29 LC100 mi
Annual fuel used1,470 L388 US gal323 UK gal1,560 L412 US gal343 UK gal
Annual fuel cost2,573 LC/year2,730 LC/year

Head-to-head comparisons

Alpina B3 Touring (G21) 3.0

  • Has 50 Nm more
  • Has 40 km/h (25 mph) higher top speed
  • Uses 0.6 L/100 km less fuel
  • Has 35 km (22 mi) more estimated range

Pros

  • Highest top speed
  • Highest torque
  • Lightest
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power

BMW M3 Touring (G81) Competition 3.0

  • Has 48 hp more
  • Is 0.3 s quicker from 0-100 km/h
  • Has 26 hp/t better power-to-weight

Pros

  • Quickest 0-100 km/h in this comparison
  • Most powerful
  • Best power-to-weight ratio

Cons

  • Highest combined fuel consumption
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Alpina B3 Touring (G21) 3.0
BMW M3 Touring (G81) Competition 3.0
Compare selected cars
2 vehicles selected

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