Car comparison

BMW Z4 (E89) 28ivsAUDI TT Roadster (8J) · Facelift 2010 2.0 TFSI

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

New comparison

BMW Z4 (E89)

28i

245 hp1997 ccGasolineRWDAutomaticTurbochargedRoadster2011-2013
VS

AUDI TT Roadster (8J) · Facelift 2010

2.0 TFSI

211 hp1984 ccGasolineFWDAutomaticTurbochargedRoadster2010-2014

Comparison overview

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

Best choices

BMW Z4 (E89) 28i

  • Quickest 0-100 km/h
    5.5 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    245 hp
    183 kW
  • Highest torque
    350 Nm
    258 lb-ft
  • Best power-to-weight
    164 hp/t
    122 kW/t
    6.1 kg/hp
  • Lowest combined fuel consumption
    6.8 L/100 km
    34.6 mpg US
    41.5 mpg UK
  • Lowest city consumption
    9.4 L/100 km
    25.0 mpg US
    30.1 mpg UK
  • Lowest highway consumption
    5.3 L/100 km
    44.4 mpg US
    53.3 mpg UK
  • Lowest CO2 emissions
    159 g/km
  • Best estimated range
    809 km
    503 mi
  • Best overall score
    52/100
  • Best performance score
    62/100
  • Best economy score
    89/100
  • Best practicality score
    32/100

Specification comparison

Specification comparison
ModelBMWZ4 (E89)28iAUDITT Roadster (8J)Facelift 20102.0 TFSI
Power
245hp183kW
211hp157kW
Torque
350Nm258lb-ft
350Nm258lb-ft
Curb weight
1,495kg3,296lb
1,320kg2,910lb
Gross weight
1,750kg3,858lb
1,640kg3,616lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
242 km/h
150 mph
To 99% top speed
73.0s99% target: 257 km/h / 160 mph
Calculated
75.1s99% target: 240 km/h / 149 mph
Calculated
0-100 km/h
5.5s
6.2s
0-200 km/h
19.6s
Calculated
24.5s
Calculated
0-60 mph
5.2s
Calculated
5.9s
Calculated
Fuel consumption
6.8L/100 km34.6mpg US41.5mpg UK
7.2L/100 km32.7mpg US39.2mpg UK
Fuel consumption city
9.4L/100 km25mpg US30.1mpg UK
10L/100 km23.5mpg US28.2mpg UK
Fuel consumption highway
5.3L/100 km44.4mpg US53.3mpg UK
5.6L/100 km42mpg US50.4mpg UK
Quarter mile
13.6s
Calculated
14.3s
Calculated
Power-to-weight
164hp/t122kW/t74hp/1000 lb
Calculated
160hp/t119kW/t73hp/1000 lb
Calculated
Torque-to-weight
234Nm/t157lb-ft/ton
Calculated
265Nm/t177lb-ft/ton
Calculated
Estimated range
809km503mi
Calculated
764km475mi
Calculated
Displacement
1,997cc122cu in
1,984cc121cu in
Length
4,239mm167in
4,198mm165in
Width
1,790mm70in
1,842mm73in
Height
1,291mm51in
1,358mm53in
Wheelbase
2,496mm98in
2,468mm97in
Front track
1,511mm59in
1,572mm62in
Rear track
1,559mm61in
1,558mm61in
Trunk volume-
250L
Max trunk volume-
700L
Doors
2
2
Seats
2
2
Fuel tank
55L
55L
CO2 emissions
159g/km
168g/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) 28iAUDI TT Roadster (8J) Facelift 2010 2.0 TFSIPowerTorque
  • BMW Z4 (E89) 28i: Power / Torque
  • AUDI TT Roadster (8J) Facelift 2010 2.0 TFSI: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMWZ4 (E89)28i5,000-6,500 rpm1,250-4,800 rpm6,750 rpm
AUDITT Roadster (8J)Facelift 20102.0 TFSI4,300-6,000 rpm1,600-4,200 rpm6,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMWZ4 (E89)28iAUDITT Roadster (8J)Facelift 20102.0 TFSI
Acceleration checkpoints
0-60 mph
0-97 km/h
5.2 s
5.9 s
0-100 km/h
0-62 mph
5.5 s
6.2 s
0-200 km/h
0-124 mph
19.6 s
24.5 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
242 km/h
150 mph
Drag race simulation
60 ft
18 m
2.3 s
2.4 s
330 ft
101 m
5.9 s
6.2 s
1/8 mile
201 m
8.9 s
9.4 s
1000 ft
305 m
11.5 s
12.1 s
1/4 mile
402 m
13.6 s
14.3 s
Trap speed
1/4 mile
402 m
171 km/h
106 mph
161 km/h
100 mph

Power comparison

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

Chart data table
VehicleValue
BMWZ4 (E89)28i
245 hp
183 kW
AUDITT Roadster (8J)Facelift 20102.0 TFSI
211 hp
157 kW

BMW Z4 (E89) 28i has 34 hp more than AUDI TT Roadster (8J) Facelift 2010 2.0 TFSI.

The biggest power difference is between AUDI TT Roadster (8J) Facelift 2010 2.0 TFSI and BMW Z4 (E89) 28i: 34 hp (25 kW).

Torque comparison

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

Chart data table
VehicleValue
BMWZ4 (E89)28i
350 Nm
258 lb-ft
AUDITT Roadster (8J)Facelift 20102.0 TFSI
350 Nm
258 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMWZ4 (E89)28i
1,495 kg
3,296 lb
AUDITT Roadster (8J)Facelift 20102.0 TFSI
1,320 kg
2,910 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)28i
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDITT Roadster (8J)Facelift 20102.0 TFSI
242 km/h
150 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
BMWZ4 (E89)28i5.5 s
AUDITT Roadster (8J)Facelift 20102.0 TFSI6.2 s

The biggest 0-100 km/h difference is between BMW Z4 (E89) 28i and AUDI TT Roadster (8J) Facelift 2010 2.0 TFSI: 0.7 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)28i
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
AUDITT Roadster (8J)Facelift 20102.0 TFSI
7.2 L/100 km
32.7 mpg US
39.2 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)28i
164 hp/t
122 kW/t
6.1 kg/hp
AUDITT Roadster (8J)Facelift 20102.0 TFSI
160 hp/t
119 kW/t
6.3 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMWZ4 (E89)28i
809 km
503 mi
AUDITT Roadster (8J)Facelift 20102.0 TFSI
764 km
475 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMWZ4 (E89)28i
245 hp
183 kW
5.5 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
AUDITT Roadster (8J)Facelift 20102.0 TFSI
211 hp
157 kW
6.2 s
242 km/h
150 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)28i
Power
245 hp
183 kW
0-100 km/h5.5 s
Top speed
Unrestricted
260 km/h162 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 Roadster (8J)Facelift 20102.0 TFSI
Power
211 hp
157 kW
0-100 km/h6.2 s
Top speed
242 km/h
150 mph
Doors/seats
2 doors
2 seats
Trunk
250 L
8.8 cu ft
Length
4,198 mm
165.3 in
Height
1,358 mm
53.5 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
BMWZ4 (E89)28i
Power
245 hp
183 kW
0-100 km/h5.5 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
AUDITT Roadster (8J)Facelift 20102.0 TFSI
Power
211 hp
157 kW
0-100 km/h6.2 s
Top speed
242 km/h
150 mph
7.2 L/100 km
32.7 mpg US
39.2 mpg UK

BMW Z4 (E89) 28i 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)28i
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
5.5 s
AUDITT Roadster (8J)Facelift 20102.0 TFSI
7.2 L/100 km
32.7 mpg US
39.2 mpg UK
6.2 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)28i
164 hp/t
122 kW/t
6.1 kg/hp
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
AUDITT Roadster (8J)Facelift 20102.0 TFSI
160 hp/t
119 kW/t
6.3 kg/hp
7.2 L/100 km
32.7 mpg US
39.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMWZ4 (E89)28iAUDITT Roadster (8J)Facelift 20102.0 TFSI
Power
245 hp
183 kW
211 hp
157 kW
Torque
350 Nm
258 lb-ft
350 Nm
258 lb-ft
Acceleration
5.5 s
6.2 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
242 km/h
150 mph
Lightness
1,495 kg
3,296 lb
1,320 kg
2,910 lb
Fuel consumption
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
7.2 L/100 km
32.7 mpg US
39.2 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
1,358 mm
53.5 in
Range score
809 km
503 mi
764 km
475 mi
CO2 score
159 g/km
168 g/km
Trunk score
-
250 L
8.8 cu ft
Power-to-weight score
164 hp/t
122 kW/t
6.1 kg/hp
160 hp/t
119 kW/t
6.3 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
VehicleBMW Z4 (E89) 28iAUDI TT Roadster (8J) Facelift 2010 2.0 TFSI
Consumption6.8 L/100 km34.6 mpg US41.5 mpg UK7.2 L/100 km32.7 mpg US39.2 mpg UK
Cost / 100 km11.90 LC100 km12.60 LC100 km
Cost / 100 mi19.15 LC100 mi20.28 LC100 mi
Annual fuel used1,020 L269 US gal224 UK gal1,080 L285 US gal238 UK gal
Annual fuel cost1,785 LC/year1,890 LC/year

Head-to-head comparisons

BMW Z4 (E89) 28i

  • Has 34 hp more
  • Is 0.7 s quicker from 0-100 km/h
  • Has 18 km/h (11 mph) higher top speed
  • Uses 0.4 L/100 km less fuel
  • Has 4 hp/t better power-to-weight
  • Has 45 km (28 mi) more estimated range
  • Emits 9 g/km less CO2

Pros

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

Cons

  • Heaviest

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW Z4 (E89) 28i
AUDI TT Roadster (8J) 2.0 TFSI
Compare selected cars
2 vehicles selected

Popular comparisons

28i
30i
VS
BMWZ4 (E89)28ivsBMWZ4 (G29)30i
2.0 TFSI
2.0 TFSI
VS
AUDITT Roadster (8J)Facelift 20102.0 TFSIvsAUDITT Roadster (8J)2.0 TFSI
28i
3.0i
VS
BMWZ4 (E89)28ivsBMWZ4 (E85)3.0i
2.0 TFSI
2.0 TFSI
VS
AUDITT Roadster (8J)Facelift 20102.0 TFSIvsAUDITT Roadster (8S)2.0 TFSI
28i
30i
VS
BMWZ4 (E89)28ivsBMWZ4 (G29 LCI)Facelift 202230i
2.0 TFSI
2.0 TFSI
VS
AUDITT Roadster (8J)Facelift 20102.0 TFSIvsAUDITTS Roadster (8J)Facelift 20102.0 TFSI
28i
3.0 si
VS
BMWZ4 (E89)28ivsBMWZ4 Coupe (E86)3.0 si
2.0 TFSI
2.0 TFSI
VS
AUDITT Roadster (8J)Facelift 20102.0 TFSIvsAUDITTS Roadster (8J)2.0 TFSI
2.0 TFSI
1.8 T
VS
AUDITT Roadster (8J)Facelift 20102.0 TFSIvsAUDITT Roadster (8N)Facelift 20001.8 T
28i
2.9
VS
BMWZ4 (E89)28ivsPorscheBoxster (987)Facelift 20092.9
2.0 TFSI
40 TFSI
VS
AUDITT Roadster (8J)Facelift 20102.0 TFSIvsAUDITT Roadster (8S)Facelift 201840 TFSI
28i
SLK 300
VS
BMWZ4 (E89)28ivsMercedes-BenzSLK (R172)SLK 300
BMW Z4 (E89) 28i vs AUDI TT Roadster (8J) · Facelift 2010 2.0 TFSI - car comparison - FastVsFaster