Car comparison

Alfa Romeo 8C Spider 4.7 V8vsAUDI TT RS Roadster (8J) · Facelift 2010 2.5 TFSI plus

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

New comparison

Alfa Romeo 8C Spider

4.7 V8

450 hp4691 ccGasolineRWDManualNaturally aspiratedRoadster2008-2010
VS

AUDI TT RS Roadster (8J) · Facelift 2010

2.5 TFSI plus

360 hp2480 ccGasolineAWDManualTurbochargedRoadster2011-2014

Comparison overview

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

Best choices

Alfa Romeo 8C Spider 4.7 V8

  • Quickest 0-100 km/h
    4.4 s
  • Fastest top speed
    300 km/h
    186 mph Unrestricted
    290 km/h
    180 mph Restricted
  • Most powerful
    450 hp
    336 kW
  • Highest torque
    480 Nm
    354 lb-ft
  • Best power-to-weight
    269 hp/t
    200 kW/t
    3.7 kg/hp
  • Best overall score
    65/100
  • Best performance score
    80/100
  • Best practicality score
    32/100

Specification comparison

Specification comparison
ModelAlfa Romeo8C Spider4.7 V8AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
Power
450hp336kW
360hp268kW
Torque
480Nm354lb-ft
465Nm343lb-ft
Curb weight
1,675kg3,693lb
1,510kg3,329lb
Gross weight
1,855kg4,090lb
1,830kg4,034lb
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
Calculated
280 km/h
174 mph
To 99% top speed
67.0s99% target: 297 km/h / 185 mph
Calculated
60.8s99% target: 277 km/h / 172 mph
Calculated
0-100 km/h
4.4s
4.4s
0-200 km/h
13.5s
Calculated
14.1s
Calculated
0-60 mph
4.2s
Calculated
4.2s
Calculated
Fuel consumption
15.8L/100 km14.9mpg US17.9mpg UK
9.1L/100 km25.8mpg US31.0mpg UK
Fuel consumption city-
12.8L/100 km18.4mpg US22.1mpg UK
Fuel consumption highway-
7L/100 km33.6mpg US40.4mpg UK
Quarter mile
12.3s
Calculated
12.4s
Calculated
Power-to-weight
269hp/t200kW/t122hp/1000 lb
Calculated
238hp/t178kW/t108hp/1000 lb
Calculated
Torque-to-weight
287Nm/t192lb-ft/ton
Calculated
308Nm/t206lb-ft/ton
Calculated
Estimated range
557km346mi
Calculated
659km410mi
Calculated
Displacement
4,691cc286cu in
2,480cc151cu in
Length
4,381mm172in
4,198mm165in
Width
1,892mm74in
1,842mm73in
Height
1,366mm54in
1,348mm53in
Wheelbase
2,645mm104in
2,468mm97in
Front track
1,590mm63in
1,555mm61in
Rear track
1,589mm63in
1,546mm61in
Ground clearance
140mm6in
-
Trunk volume-
250L
Doors
2
2
Seats
2
2
Fuel tank
88L
60L
CO2 emissions
377g/km
212g/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.

Alfa Romeo 8C Spider 4.7 V8AUDI TT RS Roadster (8J) Facelift 2010 2.5 TFSI plusPowerTorque
  • Alfa Romeo 8C Spider 4.7 V8: Power / Torque
  • AUDI TT RS Roadster (8J) Facelift 2010 2.5 TFSI plus: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Alfa Romeo8C Spider4.7 V87,000 rpm4,750 rpm7,500 rpm
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus5,500-6,700 rpm1,650-5,400 rpm6,950 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAlfa Romeo8C Spider4.7 V8AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
Acceleration checkpoints
0-60 mph
0-97 km/h
4.2 s
4.2 s
0-100 km/h
0-62 mph
4.4 s
4.4 s
0-200 km/h
0-124 mph
13.5 s
14.1 s
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
Likely limited
280 km/h
174 mph
Drag race simulation
60 ft
18 m
2.1 s
2.1 s
330 ft
101 m
5.5 s
5.5 s
1/8 mile
201 m
8.1 s
8.2 s
1000 ft
305 m
10.4 s
10.5 s
1/4 mile
402 m
12.3 s
12.4 s
Trap speed
1/4 mile
402 m
192 km/h
119 mph
188 km/h
117 mph

Power comparison

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

Chart data table
VehicleValue
Alfa Romeo8C Spider4.7 V8
450 hp
336 kW
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
360 hp
268 kW

Alfa Romeo 8C Spider 4.7 V8 has 90 hp more than AUDI TT RS Roadster (8J) Facelift 2010 2.5 TFSI plus.

The biggest power difference is between AUDI TT RS Roadster (8J) Facelift 2010 2.5 TFSI plus and Alfa Romeo 8C Spider 4.7 V8: 90 hp (67 kW).

Torque comparison

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

Chart data table
VehicleValue
Alfa Romeo8C Spider4.7 V8
480 Nm
354 lb-ft
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
465 Nm
343 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Alfa Romeo8C Spider4.7 V8
1,675 kg
3,693 lb
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
1,510 kg
3,329 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
Alfa Romeo8C Spider4.7 V8
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
280 km/h
174 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Alfa Romeo8C Spider4.7 V84.4 s
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus4.4 s

Fuel consumption comparison

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

Chart data table
VehicleValue
Alfa Romeo8C Spider4.7 V8
15.8 L/100 km
14.9 mpg US
17.9 mpg UK
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
9.1 L/100 km
25.8 mpg US
31.0 mpg UK

The biggest fuel consumption difference is between AUDI TT RS Roadster (8J) Facelift 2010 2.5 TFSI plus and Alfa Romeo 8C Spider 4.7 V8: 6.7 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
Alfa Romeo8C Spider4.7 V8
269 hp/t
200 kW/t
3.7 kg/hp
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
238 hp/t
178 kW/t
4.2 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Alfa Romeo8C Spider4.7 V8
557 km
346 mi
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
659 km
410 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Alfa Romeo8C Spider4.7 V8
450 hp
336 kW
4.4 s
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
360 hp
268 kW
4.4 s
280 km/h
174 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
Alfa Romeo8C Spider4.7 V8
Power
450 hp
336 kW
0-100 km/h4.4 s
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
Doors/seats
2 doors
2 seats
Trunk-
Length
4,381 mm
172.5 in
Height
1,366 mm
53.8 in
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
Power
360 hp
268 kW
0-100 km/h4.4 s
Top speed
280 km/h
174 mph
Doors/seats
2 doors
2 seats
Trunk
250 L
8.8 cu ft
Length
4,198 mm
165.3 in
Height
1,348 mm
53.1 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
Alfa Romeo8C Spider4.7 V8
Power
450 hp
336 kW
0-100 km/h4.4 s
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
15.8 L/100 km
14.9 mpg US
17.9 mpg UK
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
Power
360 hp
268 kW
0-100 km/h4.4 s
Top speed
280 km/h
174 mph
9.1 L/100 km
25.8 mpg US
31.0 mpg UK

AUDI TT RS Roadster (8J) Facelift 2010 2.5 TFSI plus 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
Alfa Romeo8C Spider4.7 V8
15.8 L/100 km
14.9 mpg US
17.9 mpg UK
4.4 s
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
4.4 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
Alfa Romeo8C Spider4.7 V8
269 hp/t
200 kW/t
3.7 kg/hp
15.8 L/100 km
14.9 mpg US
17.9 mpg UK
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
238 hp/t
178 kW/t
4.2 kg/hp
9.1 L/100 km
25.8 mpg US
31.0 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAlfa Romeo8C Spider4.7 V8AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
Power
450 hp
336 kW
360 hp
268 kW
Torque
480 Nm
354 lb-ft
465 Nm
343 lb-ft
Acceleration
4.4 s
4.4 s
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
280 km/h
174 mph
Lightness
1,675 kg
3,693 lb
1,510 kg
3,329 lb
Fuel consumption
15.8 L/100 km
14.9 mpg US
17.9 mpg UK
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk-
Length
4,381 mm
172.5 in
Height
1,366 mm
53.8 in
Doors/seats
2 doors
2 seats
Trunk
250 L
8.8 cu ft
Length
4,198 mm
165.3 in
Height
1,348 mm
53.1 in
Range score
557 km
346 mi
659 km
410 mi
CO2 score
377 g/km
212 g/km
Trunk score
-
250 L
8.8 cu ft
Power-to-weight score
269 hp/t
200 kW/t
3.7 kg/hp
238 hp/t
178 kW/t
4.2 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
VehicleAlfa Romeo 8C Spider 4.7 V8AUDI TT RS Roadster (8J) Facelift 2010 2.5 TFSI plus
Consumption15.8 L/100 km14.9 mpg US17.9 mpg UK9.1 L/100 km25.8 mpg US31 mpg UK
Cost / 100 km27.65 LC100 km15.92 LC100 km
Cost / 100 mi44.50 LC100 mi25.63 LC100 mi
Annual fuel used2,370 L626 US gal521 UK gal1,365 L361 US gal300 UK gal
Annual fuel cost4,148 LC/year2,389 LC/year

Head-to-head comparisons

Alfa Romeo 8C Spider 4.7 V8

  • Has 90 hp more
  • Has 15 Nm more
  • Has 20 km/h (12 mph) higher top speed
  • Has 30 hp/t better power-to-weight

Pros

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

Cons

  • Highest combined fuel consumption
  • Heaviest
  • Highest CO2 emissions

Choose cars to compare

Brand
Model
Generation
Engine or modification
Alfa Romeo 8C Spider 4.7 V8
AUDI TT RS Roadster (8J) 2.5 TFSI plus
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2 vehicles selected

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