Car comparison

Alpina B6 Cabrio (E64) 4.4 V8vsAUDI R8 Spyder (42) 5.2 FSI V10

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

New comparison

Alpina B6 Cabrio (E64)

4.4 V8

500 hp4398 ccGasolineRWDAutomaticSuperchargedCabriolet / convertible2005-2008
VS

AUDI R8 Spyder (42)

5.2 FSI V10

525 hp5204 ccGasolineAWDAutomaticNaturally aspiratedCabriolet / convertible2010-2012

Comparison overview

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

Best choices

Alpina B6 Cabrio (E64) 4.4 V8

  • Fastest top speed
    320 km/h
    199 mph Unrestricted
    310 km/h
    193 mph Restricted
  • Highest torque
    700 Nm
    516 lb-ft
  • Lowest combined fuel consumption
    12.8 L/100 km
    18.4 mpg US
    22.1 mpg UK
  • Lowest city consumption
    18.9 L/100 km
    12.4 mpg US
    14.9 mpg UK
  • Lowest highway consumption
    9.3 L/100 km
    25.3 mpg US
    30.4 mpg UK
  • Lowest CO2 emissions
    306 g/km
  • Largest trunk
    450 L
  • Best overall score
    75/100
  • Best performance score
    87/100
  • Best economy score
    73/100
  • Best practicality score
    48/100

AUDI R8 Spyder (42) 5.2 FSI V10

  • Quickest 0-100 km/h
    4.1 s
  • Most powerful
    525 hp
    391 kW
  • Lightest
    1,725 kg
    3,803 lb
  • Best power-to-weight
    304 hp/t
    227 kW/t
    3.3 kg/hp
  • Best estimated range
    563 km
    350 mi

Specification comparison

Specification comparison
ModelAlpinaB6 Cabrio (E64)4.4 V8AUDIR8 Spyder (42)5.2 FSI V10
Power
500hp373kW
525hp391kW
Torque
700Nm516lb-ft
530Nm391lb-ft
Curb weight
1,930kg4,255lb
1,725kg3,803lb
Gross weight
2,350kg5,181lb
2,025kg4,464lb
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Calculated
313 km/h
194 mph
To 99% top speed
84.3s99% target: 317 km/h / 197 mph
Calculated
64.4s99% target: 310 km/h / 193 mph
Calculated
0-100 km/h
4.9s
4.1s
0-200 km/h
14.6s
Calculated
12.1s
Calculated
0-60 mph
4.7s
Calculated
3.9s
Calculated
Fuel consumption
12.8L/100 km18.4mpg US22.1mpg UK
14.2L/100 km16.6mpg US19.9mpg UK
Fuel consumption city
18.9L/100 km12.4mpg US14.9mpg UK
21.5L/100 km10.9mpg US13.1mpg UK
Fuel consumption highway
9.3L/100 km25.3mpg US30.4mpg UK
10.2L/100 km23.1mpg US27.7mpg UK
Quarter mile
12.8s
Calculated
11.9s
Calculated
Power-to-weight
259hp/t193kW/t118hp/1000 lb
Calculated
304hp/t227kW/t138hp/1000 lb
Calculated
Torque-to-weight
363Nm/t243lb-ft/ton
Calculated
307Nm/t206lb-ft/ton
Calculated
Estimated range
547km340mi
Calculated
563km350mi
Calculated
Displacement
4,398cc268cu in
5,204cc318cu in
Length
4,820mm190in
4,434mm175in
Width
1,855mm73in
1,904mm75in
Height
1,371mm54in
1,244mm49in
Wheelbase
2,780mm109in
2,650mm104in
Front track
1,558mm61in
1,638mm64in
Rear track
1,598mm63in
1,595mm63in
Trunk volume-
100L
Max trunk volume
450L
-
Doors
2
2
Seats
4
2
Fuel tank
70L
80L
CO2 emissions
306g/km
332g/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 B6 Cabrio (E64) 4.4 V8AUDI R8 Spyder (42) 5.2 FSI V10PowerTorque
  • Alpina B6 Cabrio (E64) 4.4 V8: Power / Torque
  • AUDI R8 Spyder (42) 5.2 FSI V10: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AlpinaB6 Cabrio (E64)4.4 V85,500 rpm4,250 rpm5,750 rpm
AUDIR8 Spyder (42)5.2 FSI V108,000 rpm6,500 rpm8,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAlpinaB6 Cabrio (E64)4.4 V8AUDIR8 Spyder (42)5.2 FSI V10
Acceleration checkpoints
0-60 mph
0-97 km/h
4.7 s
3.9 s
0-100 km/h
0-62 mph
4.9 s
4.1 s
0-200 km/h
0-124 mph
14.6 s
12.1 s
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Likely limited
313 km/h
194 mph
Drag race simulation
60 ft
18 m
2.2 s
2.1 s
330 ft
101 m
5.7 s
5.3 s
1/8 mile
201 m
8.5 s
7.9 s
1000 ft
305 m
10.9 s
10.1 s
1/4 mile
402 m
12.8 s
11.9 s
Trap speed
1/4 mile
402 m
187 km/h
116 mph
199 km/h
124 mph

Power comparison

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

Chart data table
VehicleValue
AlpinaB6 Cabrio (E64)4.4 V8
500 hp
373 kW
AUDIR8 Spyder (42)5.2 FSI V10
525 hp
391 kW

AUDI R8 Spyder (42) 5.2 FSI V10 has 25 hp more than Alpina B6 Cabrio (E64) 4.4 V8.

The biggest power difference is between Alpina B6 Cabrio (E64) 4.4 V8 and AUDI R8 Spyder (42) 5.2 FSI V10: 25 hp (19 kW).

Torque comparison

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

Chart data table
VehicleValue
AlpinaB6 Cabrio (E64)4.4 V8
700 Nm
516 lb-ft
AUDIR8 Spyder (42)5.2 FSI V10
530 Nm
391 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
AlpinaB6 Cabrio (E64)4.4 V8
1,930 kg
4,255 lb
AUDIR8 Spyder (42)5.2 FSI V10
1,725 kg
3,803 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
AlpinaB6 Cabrio (E64)4.4 V8
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
AUDIR8 Spyder (42)5.2 FSI V10
313 km/h
194 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
AlpinaB6 Cabrio (E64)4.4 V84.9 s
AUDIR8 Spyder (42)5.2 FSI V104.1 s

The biggest 0-100 km/h difference is between AUDI R8 Spyder (42) 5.2 FSI V10 and Alpina B6 Cabrio (E64) 4.4 V8: 0.8 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
AlpinaB6 Cabrio (E64)4.4 V8
12.8 L/100 km
18.4 mpg US
22.1 mpg UK
AUDIR8 Spyder (42)5.2 FSI V10
14.2 L/100 km
16.6 mpg US
19.9 mpg UK

The biggest fuel consumption difference is between Alpina B6 Cabrio (E64) 4.4 V8 and AUDI R8 Spyder (42) 5.2 FSI V10: 1.4 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
AlpinaB6 Cabrio (E64)4.4 V8
259 hp/t
193 kW/t
3.9 kg/hp
AUDIR8 Spyder (42)5.2 FSI V10
304 hp/t
227 kW/t
3.3 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AlpinaB6 Cabrio (E64)4.4 V8
547 km
340 mi
AUDIR8 Spyder (42)5.2 FSI V10
563 km
350 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AlpinaB6 Cabrio (E64)4.4 V8
500 hp
373 kW
4.9 s
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
AUDIR8 Spyder (42)5.2 FSI V10
525 hp
391 kW
4.1 s
313 km/h
194 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
AlpinaB6 Cabrio (E64)4.4 V8
Power
500 hp
373 kW
0-100 km/h4.9 s
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
Doors/seats
2 doors
4 seats
Trunk
450 L
15.9 cu ft
Length
4,820 mm
189.8 in
Height
1,371 mm
54.0 in
AUDIR8 Spyder (42)5.2 FSI V10
Power
525 hp
391 kW
0-100 km/h4.1 s
Top speed
313 km/h
194 mph
Doors/seats
2 doors
2 seats
Trunk
100 L
3.5 cu ft
Length
4,434 mm
174.6 in
Height
1,244 mm
49.0 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
AlpinaB6 Cabrio (E64)4.4 V8
Power
500 hp
373 kW
0-100 km/h4.9 s
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
12.8 L/100 km
18.4 mpg US
22.1 mpg UK
AUDIR8 Spyder (42)5.2 FSI V10
Power
525 hp
391 kW
0-100 km/h4.1 s
Top speed
313 km/h
194 mph
14.2 L/100 km
16.6 mpg US
19.9 mpg UK

Alpina B6 Cabrio (E64) 4.4 V8 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
AlpinaB6 Cabrio (E64)4.4 V8
12.8 L/100 km
18.4 mpg US
22.1 mpg UK
4.9 s
AUDIR8 Spyder (42)5.2 FSI V10
14.2 L/100 km
16.6 mpg US
19.9 mpg UK
4.1 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
AlpinaB6 Cabrio (E64)4.4 V8
259 hp/t
193 kW/t
3.9 kg/hp
12.8 L/100 km
18.4 mpg US
22.1 mpg UK
AUDIR8 Spyder (42)5.2 FSI V10
304 hp/t
227 kW/t
3.3 kg/hp
14.2 L/100 km
16.6 mpg US
19.9 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAlpinaB6 Cabrio (E64)4.4 V8AUDIR8 Spyder (42)5.2 FSI V10
Power
500 hp
373 kW
525 hp
391 kW
Torque
700 Nm
516 lb-ft
530 Nm
391 lb-ft
Acceleration
4.9 s
4.1 s
Top speed
Unrestricted
320 km/h199 mph
Restricted
310 km/h193 mph
313 km/h
194 mph
Lightness
1,930 kg
4,255 lb
1,725 kg
3,803 lb
Fuel consumption
12.8 L/100 km
18.4 mpg US
22.1 mpg UK
14.2 L/100 km
16.6 mpg US
19.9 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
450 L
15.9 cu ft
Length
4,820 mm
189.8 in
Height
1,371 mm
54.0 in
Doors/seats
2 doors
2 seats
Trunk
100 L
3.5 cu ft
Length
4,434 mm
174.6 in
Height
1,244 mm
49.0 in
Range score
547 km
340 mi
563 km
350 mi
CO2 score
306 g/km
332 g/km
Trunk score
450 L
15.9 cu ft
100 L
3.5 cu ft
Power-to-weight score
259 hp/t
193 kW/t
3.9 kg/hp
304 hp/t
227 kW/t
3.3 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 B6 Cabrio (E64) 4.4 V8AUDI R8 Spyder (42) 5.2 FSI V10
Consumption12.8 L/100 km18.4 mpg US22.1 mpg UK14.2 L/100 km16.6 mpg US19.9 mpg UK
Cost / 100 km22.40 LC100 km24.85 LC100 km
Cost / 100 mi36.05 LC100 mi39.99 LC100 mi
Annual fuel used1,920 L507 US gal422 UK gal2,130 L563 US gal469 UK gal
Annual fuel cost3,360 LC/year3,728 LC/year

Head-to-head comparisons

Alpina B6 Cabrio (E64) 4.4 V8

  • Has 170 Nm more
  • Has 7 km/h (4 mph) higher top speed
  • Uses 1.4 L/100 km less fuel
  • Has 350 L more trunk volume
  • Emits 26 g/km less CO2

Pros

  • Highest top speed
  • Highest torque
  • Lowest combined fuel consumption
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Heaviest

AUDI R8 Spyder (42) 5.2 FSI V10

  • Has 25 hp more
  • Is 205 kg lighter
  • Is 0.8 s quicker from 0-100 km/h
  • Has 45 hp/t better power-to-weight
  • Has 17 km (10 mi) more estimated range

Pros

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

Cons

  • Highest combined fuel consumption
  • Lowest top speed
  • Smallest trunk
  • Highest CO2 emissions

Choose cars to compare

Brand
Model
Generation
Engine or modification
Alpina B6 Cabrio (E64) 4.4 V8
AUDI R8 Spyder (42) 5.2 FSI V10
Compare selected cars
2 vehicles selected

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