Car comparison

AUDI R8 Spyder (42) 4.2 FSI V8vsAUDI TT RS Roadster (8S) 2.5 TFSI

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

New comparison

AUDI R8 Spyder (42)

4.2 FSI V8

430 hp4163 ccGasolineAWDAutomaticNaturally aspiratedCabriolet / convertible2011-2012
VS

AUDI TT RS Roadster (8S)

2.5 TFSI

400 hp2480 ccGasolineAWDAutomaticTurbochargedCabriolet / convertible2016-2018

Comparison overview

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

Best choices

AUDI TT RS Roadster (8S) 2.5 TFSI

  • Quickest 0-100 km/h
    3.9 s
  • Highest torque
    480 Nm
    354 lb-ft
  • Lightest
    1,530 kg
    3,373 lb
  • Best power-to-weight
    261 hp/t
    195 kW/t
    3.8 kg/hp
  • Lowest combined fuel consumption
    8.5 L/100 km
    27.7 mpg US
    33.2 mpg UK
  • Lowest city consumption
    11.4 L/100 km
    20.6 mpg US
    24.8 mpg UK
  • Lowest highway consumption
    6.8 L/100 km
    34.6 mpg US
    41.5 mpg UK
  • Lowest CO2 emissions
    194 g/km
  • Best estimated range
    647 km
    402 mi
  • Largest trunk
    280 L
  • Best overall score
    63/100
  • Best economy score
    84/100
  • Best practicality score
    34/100

Specification comparison

Specification comparison
ModelAUDIR8 Spyder (42)4.2 FSI V8AUDITT RS Roadster (8S)2.5 TFSI
Power
430hp321kW
400hp298kW
Torque
430Nm317lb-ft
480Nm354lb-ft
Curb weight
1,665kg3,671lb
1,530kg3,373lb
Gross weight
1,965kg4,332lb
1,850kg4,079lb
Top speed
300 km/h
186 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
71.9s99% target: 297 km/h / 185 mph
Calculated
49.5s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
4.5s
3.9s
0-200 km/h
14.0s
Calculated
13.6s
Calculated
0-60 mph
4.3s
Calculated
3.7s
Calculated
Fuel consumption
13.5L/100 km17.4mpg US20.9mpg UK
8.5L/100 km27.7mpg US33.2mpg UK
Fuel consumption city
20.1L/100 km11.7mpg US14.1mpg UK
11.4L/100 km20.6mpg US24.8mpg UK
Fuel consumption highway
9.6L/100 km24.5mpg US29.4mpg UK
6.8L/100 km34.6mpg US41.5mpg UK
Quarter mile
12.5s
Calculated
12.0s
Calculated
Power-to-weight
258hp/t193kW/t117hp/1000 lb
Calculated
261hp/t195kW/t119hp/1000 lb
Calculated
Torque-to-weight
258Nm/t173lb-ft/ton
Calculated
314Nm/t210lb-ft/ton
Calculated
Estimated range
593km368mi
Calculated
647km402mi
Calculated
Displacement
4,163cc254cu in
2,480cc151cu in
Length
4,431mm174in
4,191mm165in
Width
1,904mm75in
1,832mm72in
Height
1,244mm49in
1,346mm53in
Wheelbase
2,650mm104in
2,505mm99in
Front track
1,638mm64in
1,564mm62in
Rear track
1,595mm63in
1,543mm61in
Ground clearance
110mm4in
-
Trunk volume
100L
280L
Doors
2
2
Seats
2
2
Fuel tank
80L
55L
CO2 emissions
315g/km
194g/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.

AUDI R8 Spyder (42) 4.2 FSI V8AUDI TT RS Roadster (8S) 2.5 TFSIPowerTorque
  • AUDI R8 Spyder (42) 4.2 FSI V8: Power / Torque
  • AUDI TT RS Roadster (8S) 2.5 TFSI: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIR8 Spyder (42)4.2 FSI V87,900 rpm4,500-6,000 rpm8,250 rpm
AUDITT RS Roadster (8S)2.5 TFSI5,850-7,000 rpm1,700-5,850 rpm7,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIR8 Spyder (42)4.2 FSI V8AUDITT RS Roadster (8S)2.5 TFSI
Acceleration checkpoints
0-60 mph
0-97 km/h
4.3 s
3.7 s
0-100 km/h
0-62 mph
4.5 s
3.9 s
0-200 km/h
0-124 mph
14.0 s
13.6 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
2.0 s
330 ft
101 m
5.5 s
5.2 s
1/8 mile
201 m
8.2 s
7.8 s
1000 ft
305 m
10.5 s
10.1 s
1/4 mile
402 m
12.5 s
12.0 s
Trap speed
1/4 mile
402 m
189 km/h
117 mph
190 km/h
118 mph

Power comparison

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

Chart data table
VehicleValue
AUDIR8 Spyder (42)4.2 FSI V8
430 hp
321 kW
AUDITT RS Roadster (8S)2.5 TFSI
400 hp
298 kW

AUDI R8 Spyder (42) 4.2 FSI V8 has 30 hp more than AUDI TT RS Roadster (8S) 2.5 TFSI.

The biggest power difference is between AUDI TT RS Roadster (8S) 2.5 TFSI and AUDI R8 Spyder (42) 4.2 FSI V8: 30 hp (22 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIR8 Spyder (42)4.2 FSI V8
430 Nm
317 lb-ft
AUDITT RS Roadster (8S)2.5 TFSI
480 Nm
354 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
AUDIR8 Spyder (42)4.2 FSI V8
1,665 kg
3,671 lb
AUDITT RS Roadster (8S)2.5 TFSI
1,530 kg
3,373 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
AUDIR8 Spyder (42)4.2 FSI V8
300 km/h
186 mph
AUDITT RS Roadster (8S)2.5 TFSI
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
AUDIR8 Spyder (42)4.2 FSI V84.5 s
AUDITT RS Roadster (8S)2.5 TFSI3.9 s

Although AUDI R8 Spyder (42) 4.2 FSI V8 has more power, AUDI TT RS Roadster (8S) 2.5 TFSI is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between AUDI TT RS Roadster (8S) 2.5 TFSI and AUDI R8 Spyder (42) 4.2 FSI V8: 0.6 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
AUDIR8 Spyder (42)4.2 FSI V8
13.5 L/100 km
17.4 mpg US
20.9 mpg UK
AUDITT RS Roadster (8S)2.5 TFSI
8.5 L/100 km
27.7 mpg US
33.2 mpg UK

The biggest fuel consumption difference is between AUDI TT RS Roadster (8S) 2.5 TFSI and AUDI R8 Spyder (42) 4.2 FSI V8: 5.0 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
AUDIR8 Spyder (42)4.2 FSI V8
258 hp/t
193 kW/t
3.9 kg/hp
AUDITT RS Roadster (8S)2.5 TFSI
261 hp/t
195 kW/t
3.8 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDIR8 Spyder (42)4.2 FSI V8
593 km
368 mi
AUDITT RS Roadster (8S)2.5 TFSI
647 km
402 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIR8 Spyder (42)4.2 FSI V8
430 hp
321 kW
4.5 s
300 km/h
186 mph
AUDITT RS Roadster (8S)2.5 TFSI
400 hp
298 kW
3.9 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
AUDIR8 Spyder (42)4.2 FSI V8
Power
430 hp
321 kW
0-100 km/h4.5 s
Top speed
300 km/h
186 mph
Doors/seats
2 doors
2 seats
Trunk
100 L
3.5 cu ft
Length
4,431 mm
174.4 in
Height
1,244 mm
49.0 in
AUDITT RS Roadster (8S)2.5 TFSI
Power
400 hp
298 kW
0-100 km/h3.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
2 seats
Trunk
280 L
9.9 cu ft
Length
4,191 mm
165.0 in
Height
1,346 mm
53.0 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
AUDIR8 Spyder (42)4.2 FSI V8
Power
430 hp
321 kW
0-100 km/h4.5 s
Top speed
300 km/h
186 mph
13.5 L/100 km
17.4 mpg US
20.9 mpg UK
AUDITT RS Roadster (8S)2.5 TFSI
Power
400 hp
298 kW
0-100 km/h3.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
8.5 L/100 km
27.7 mpg US
33.2 mpg UK

AUDI TT RS Roadster (8S) 2.5 TFSI 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
AUDIR8 Spyder (42)4.2 FSI V8
13.5 L/100 km
17.4 mpg US
20.9 mpg UK
4.5 s
AUDITT RS Roadster (8S)2.5 TFSI
8.5 L/100 km
27.7 mpg US
33.2 mpg UK
3.9 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
AUDIR8 Spyder (42)4.2 FSI V8
258 hp/t
193 kW/t
3.9 kg/hp
13.5 L/100 km
17.4 mpg US
20.9 mpg UK
AUDITT RS Roadster (8S)2.5 TFSI
261 hp/t
195 kW/t
3.8 kg/hp
8.5 L/100 km
27.7 mpg US
33.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIR8 Spyder (42)4.2 FSI V8AUDITT RS Roadster (8S)2.5 TFSI
Power
430 hp
321 kW
400 hp
298 kW
Torque
430 Nm
317 lb-ft
480 Nm
354 lb-ft
Acceleration
4.5 s
3.9 s
Top speed
300 km/h
186 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,665 kg
3,671 lb
1,530 kg
3,373 lb
Fuel consumption
13.5 L/100 km
17.4 mpg US
20.9 mpg UK
8.5 L/100 km
27.7 mpg US
33.2 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
100 L
3.5 cu ft
Length
4,431 mm
174.4 in
Height
1,244 mm
49.0 in
Doors/seats
2 doors
2 seats
Trunk
280 L
9.9 cu ft
Length
4,191 mm
165.0 in
Height
1,346 mm
53.0 in
Range score
593 km
368 mi
647 km
402 mi
CO2 score
315 g/km
194 g/km
Trunk score
100 L
3.5 cu ft
280 L
9.9 cu ft
Power-to-weight score
258 hp/t
193 kW/t
3.9 kg/hp
261 hp/t
195 kW/t
3.8 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
VehicleAUDI R8 Spyder (42) 4.2 FSI V8AUDI TT RS Roadster (8S) 2.5 TFSI
Consumption13.5 L/100 km17.4 mpg US20.9 mpg UK8.5 L/100 km27.7 mpg US33.2 mpg UK
Cost / 100 km23.63 LC100 km14.88 LC100 km
Cost / 100 mi38.02 LC100 mi23.94 LC100 mi
Annual fuel used2,025 L535 US gal445 UK gal1,275 L337 US gal280 UK gal
Annual fuel cost3,544 LC/year2,231 LC/year

Head-to-head comparisons

AUDI R8 Spyder (42) 4.2 FSI V8

  • Has 30 hp more
  • Has 40 km/h (25 mph) higher top speed

Pros

  • Highest top speed
  • Most powerful

Cons

  • Slowest 0-100 km/h
  • Highest combined fuel consumption
  • Heaviest
  • Smallest trunk
  • Highest CO2 emissions

AUDI TT RS Roadster (8S) 2.5 TFSI

  • Has 50 Nm more
  • Is 135 kg lighter
  • Is 0.6 s quicker from 0-100 km/h
  • Uses 5.0 L/100 km less fuel
  • Has 3 hp/t better power-to-weight
  • Has 54 km (34 mi) more estimated range
  • Has 180 L more trunk volume
  • Emits 121 g/km less CO2

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest torque
  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Best estimated range
  • Largest trunk

Cons

  • Lowest power
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI R8 Spyder (42) 4.2 FSI V8
AUDI TT RS Roadster (8S) 2.5 TFSI
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