Car comparison

BMW Z4 (E89) 35ivsAUDI TT RS Roadster (8J) · Facelift 2010 2.5 TFSI

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

New comparison

BMW Z4 (E89)

35i

306 hp2979 ccGasolineRWDManualTurbochargedRoadster2010-2013
VS

AUDI TT RS Roadster (8J) · Facelift 2010

2.5 TFSI

340 hp2480 ccGasolineAWDManualTurbochargedRoadster2010-2014

Comparison overview

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

Best choices

AUDI TT RS Roadster (8J) Facelift 2010 2.5 TFSI

  • Quickest 0-100 km/h
    4.7 s
  • Most powerful
    340 hp
    254 kW
  • Highest torque
    450 Nm
    332 lb-ft
  • Lightest
    1,510 kg
    3,329 lb
  • Best power-to-weight
    225 hp/t
    168 kW/t
    4.4 kg/hp
  • Lowest combined fuel consumption
    9.1 L/100 km
    25.8 mpg US
    31.0 mpg UK
  • Lowest city consumption
    12.8 L/100 km
    18.4 mpg US
    22.1 mpg UK
  • Lowest CO2 emissions
    212 g/km
  • Best estimated range
    659 km
    410 mi
  • Best overall score
    58/100
  • Best performance score
    71/100

BMW Z4 (E89) 35i

  • Fastest top speed
    270 km/h
    168 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Lowest highway consumption
    7.0 L/100 km
    33.6 mpg US
    40.4 mpg UK
  • Best economy score
    82/100
  • Best practicality score
    32/100

Specification comparison

Specification comparison
ModelBMWZ4 (E89)35iAUDITT RS Roadster (8J)Facelift 20102.5 TFSI
Power
306hp228kW
340hp254kW
Torque
400Nm295lb-ft
450Nm332lb-ft
Curb weight
1,580kg3,483lb
1,510kg3,329lb
Gross weight
1,835kg4,045lb
1,830kg4,034lb
Top speed
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
70.8s99% target: 267 km/h / 166 mph
Calculated
61.0s99% target: 262 km/h / 163 mph
Calculated
0-100 km/h
5.2s
4.7s
0-200 km/h
17.6s
Calculated
16.0s
Calculated
0-60 mph
5.0s
Calculated
4.5s
Calculated
Fuel consumption
9.4L/100 km25mpg US30.1mpg UK
9.1L/100 km25.8mpg US31.0mpg UK
Fuel consumption city
13.5L/100 km17.4mpg US20.9mpg UK
12.8L/100 km18.4mpg US22.1mpg UK
Fuel consumption highway
7L/100 km33.6mpg US40.4mpg UK
7L/100 km33.6mpg US40.4mpg UK
Quarter mile
13.3s
Calculated
12.8s
Calculated
Power-to-weight
194hp/t144kW/t88hp/1000 lb
Calculated
225hp/t168kW/t102hp/1000 lb
Calculated
Torque-to-weight
253Nm/t169lb-ft/ton
Calculated
298Nm/t199lb-ft/ton
Calculated
Estimated range
585km364mi
Calculated
659km410mi
Calculated
Displacement
2,979cc182cu in
2,480cc151cu in
Length
4,239mm167in
4,198mm165in
Width
1,790mm70in
1,842mm73in
Height
1,291mm51in
1,348mm53in
Wheelbase
2,496mm98in
2,468mm97in
Front track
1,511mm59in
1,555mm61in
Rear track
1,559mm61in
1,546mm61in
Trunk volume-
250L
Doors
2
2
Seats
2
2
Fuel tank
55L
60L
CO2 emissions
219g/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.

BMW Z4 (E89) 35iAUDI TT RS Roadster (8J) Facelift 2010 2.5 TFSIPowerTorque
  • BMW Z4 (E89) 35i: Power / Torque
  • AUDI TT RS Roadster (8J) Facelift 2010 2.5 TFSI: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMWZ4 (E89)35i5,800 rpm1,300-5,000 rpm6,050 rpm
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI5,400-6,500 rpm1,600-5,300 rpm6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMWZ4 (E89)35iAUDITT RS Roadster (8J)Facelift 20102.5 TFSI
Acceleration checkpoints
0-60 mph
0-97 km/h
5.0 s
4.5 s
0-100 km/h
0-62 mph
5.2 s
4.7 s
0-200 km/h
0-124 mph
17.6 s
16.0 s
Top speed
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
Likely limited
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.2 s
2.1 s
330 ft
101 m
5.8 s
5.6 s
1/8 mile
201 m
8.7 s
8.4 s
1000 ft
305 m
11.2 s
10.8 s
1/4 mile
402 m
13.3 s
12.8 s
Trap speed
1/4 mile
402 m
176 km/h
109 mph
181 km/h
113 mph

Power comparison

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

Chart data table
VehicleValue
BMWZ4 (E89)35i
306 hp
228 kW
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI
340 hp
254 kW

AUDI TT RS Roadster (8J) Facelift 2010 2.5 TFSI has 34 hp more than BMW Z4 (E89) 35i.

The biggest power difference is between BMW Z4 (E89) 35i and AUDI TT RS Roadster (8J) Facelift 2010 2.5 TFSI: 34 hp (25 kW).

Torque comparison

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

Chart data table
VehicleValue
BMWZ4 (E89)35i
400 Nm
295 lb-ft
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI
450 Nm
332 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMWZ4 (E89)35i
1,580 kg
3,483 lb
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI
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
BMWZ4 (E89)35i
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI
Unrestricted
265 km/h165 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
BMWZ4 (E89)35i5.2 s
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI4.7 s

The biggest 0-100 km/h difference is between AUDI TT RS Roadster (8J) Facelift 2010 2.5 TFSI and BMW Z4 (E89) 35i: 0.5 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
BMWZ4 (E89)35i
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI
9.1 L/100 km
25.8 mpg US
31.0 mpg UK

Power-to-weight comparison

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

Chart data table
VehicleValue
BMWZ4 (E89)35i
194 hp/t
144 kW/t
5.2 kg/hp
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI
225 hp/t
168 kW/t
4.4 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMWZ4 (E89)35i
585 km
364 mi
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI
659 km
410 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMWZ4 (E89)35i
306 hp
228 kW
5.2 s
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI
340 hp
254 kW
4.7 s
Unrestricted
265 km/h165 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
BMWZ4 (E89)35i
Power
306 hp
228 kW
0-100 km/h5.2 s
Top speed
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
2 seats
Trunk-
Length
4,239 mm
166.9 in
Height
1,291 mm
50.8 in
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI
Power
340 hp
254 kW
0-100 km/h4.7 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 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
BMWZ4 (E89)35i
Power
306 hp
228 kW
0-100 km/h5.2 s
Top speed
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI
Power
340 hp
254 kW
0-100 km/h4.7 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
9.1 L/100 km
25.8 mpg US
31.0 mpg UK

AUDI TT RS Roadster (8J) Facelift 2010 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
BMWZ4 (E89)35i
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
5.2 s
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
4.7 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
BMWZ4 (E89)35i
194 hp/t
144 kW/t
5.2 kg/hp
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI
225 hp/t
168 kW/t
4.4 kg/hp
9.1 L/100 km
25.8 mpg US
31.0 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMWZ4 (E89)35iAUDITT RS Roadster (8J)Facelift 20102.5 TFSI
Power
306 hp
228 kW
340 hp
254 kW
Torque
400 Nm
295 lb-ft
450 Nm
332 lb-ft
Acceleration
5.2 s
4.7 s
Top speed
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Lightness
1,580 kg
3,483 lb
1,510 kg
3,329 lb
Fuel consumption
9.4 L/100 km
25.0 mpg US
30.1 mpg UK
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk-
Length
4,239 mm
166.9 in
Height
1,291 mm
50.8 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
585 km
364 mi
659 km
410 mi
CO2 score
219 g/km
212 g/km
Trunk score
-
250 L
8.8 cu ft
Power-to-weight score
194 hp/t
144 kW/t
5.2 kg/hp
225 hp/t
168 kW/t
4.4 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
VehicleBMW Z4 (E89) 35iAUDI TT RS Roadster (8J) Facelift 2010 2.5 TFSI
Consumption9.4 L/100 km25 mpg US30.1 mpg UK9.1 L/100 km25.8 mpg US31 mpg UK
Cost / 100 km16.45 LC100 km15.92 LC100 km
Cost / 100 mi26.47 LC100 mi25.63 LC100 mi
Annual fuel used1,410 L372 US gal310 UK gal1,365 L361 US gal300 UK gal
Annual fuel cost2,468 LC/year2,389 LC/year

Head-to-head comparisons

BMW Z4 (E89) 35i

  • Has 5 km/h (3 mph) higher top speed

Pros

  • Highest top speed

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Highest combined fuel consumption
  • Heaviest
  • Highest CO2 emissions

AUDI TT RS Roadster (8J) Facelift 2010 2.5 TFSI

  • Has 34 hp more
  • Has 50 Nm more
  • Is 70 kg lighter
  • Is 0.5 s quicker from 0-100 km/h
  • Uses 0.3 L/100 km less fuel
  • Has 31 hp/t better power-to-weight
  • Has 74 km (46 mi) more estimated range
  • Emits 7 g/km less CO2

Pros

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

Cons

  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW Z4 (E89) 35i
AUDI TT RS Roadster (8J) 2.5 TFSI
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2 vehicles selected

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