Car comparison

BMW Z4 (E85) 2.5ivsAUDI TT Roadster (8N) · Facelift 2000 1.8 T

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

New comparison

BMW Z4 (E85)

2.5i

192 hp2494 ccGasolineRWDManualNaturally aspiratedRoadster2002-2006
VS

AUDI TT Roadster (8N) · Facelift 2000

1.8 T

190 hp1781 ccGasolineFWDManualTurbochargedRoadster2005-2006

Comparison overview

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

Best choices

BMW Z4 (E85) 2.5i

  • Quickest 0-100 km/h
    7.0 s
  • Fastest top speed
    235 km/h
    146 mph
  • Most powerful
    192 hp
    143 kW
  • Highest torque
    245 Nm
    181 lb-ft
  • Lightest
    1,335 kg
    2,943 lb
  • Best power-to-weight
    144 hp/t
    107 kW/t
    7.0 kg/hp
  • Lowest combined fuel consumption
    7.4 L/100 km
    31.8 mpg US
    38.2 mpg UK
  • Lowest city consumption
    10.4 L/100 km
    22.6 mpg US
    27.2 mpg UK
  • Lowest highway consumption
    5.7 L/100 km
    41.3 mpg US
    49.6 mpg UK
  • Best estimated range
    743 km
    462 mi
  • Largest trunk
    240 L
  • Best overall score
    45/100
  • Best performance score
    52/100
  • Best economy score
    87/100

Specification comparison

Specification comparison
ModelBMWZ4 (E85)2.5iAUDITT Roadster (8N)Facelift 20001.8 T
Power
192hp143kW
190hp142kW
Torque
245Nm181lb-ft
240Nm177lb-ft
Curb weight
1,335kg2,943lb
1,340kg2,954lb
Gross weight
1,560kg3,439lb
1,640kg3,616lb
Top speed
235 km/h
146 mph
228 km/h
142 mph
To 99% top speed
80.5s99% target: 233 km/h / 145 mph
Calculated
86.3s99% target: 226 km/h / 140 mph
Calculated
0-100 km/h
7.0s
7.6s
0-200 km/h
29.1s
Calculated
34.4s
Calculated
0-60 mph
6.6s
Calculated
7.2s
Calculated
Fuel consumption
7.4L/100 km31.8mpg US38.2mpg UK
8.2L/100 km28.7mpg US34.4mpg UK
Fuel consumption city
10.4L/100 km22.6mpg US27.2mpg UK
11.2L/100 km21mpg US25.2mpg UK
Fuel consumption highway
5.7L/100 km41.3mpg US49.6mpg UK
6.4L/100 km36.8mpg US44.1mpg UK
Quarter mile
15.0s
Calculated
15.5s
Calculated
Power-to-weight
144hp/t107kW/t65hp/1000 lb
Calculated
142hp/t106kW/t64hp/1000 lb
Calculated
Torque-to-weight
184Nm/t123lb-ft/ton
Calculated
179Nm/t120lb-ft/ton
Calculated
Estimated range
743km462mi
Calculated
671km417mi
Calculated
Displacement
2,494cc152cu in
1,781cc109cu in
Length
4,091mm161in
4,041mm159in
Width
1,781mm70in
1,764mm69in
Height
1,299mm51in
1,349mm53in
Wheelbase
2,495mm98in
2,422mm95in
Front track
1,473mm58in
1,528mm60in
Rear track
1,523mm60in
1,513mm60in
Trunk volume
240L
-
Max trunk volume
260L
220L
Doors
2
2
Seats
2
2
Fuel tank
55L
55L
CO2 emissions-
197g/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 (E85) 2.5iAUDI TT Roadster (8N) Facelift 2000 1.8 TPowerTorque
  • BMW Z4 (E85) 2.5i: Power / Torque
  • AUDI TT Roadster (8N) Facelift 2000 1.8 T: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMWZ4 (E85)2.5i6,000 rpm3,500 rpm6,250 rpm
AUDITT Roadster (8N)Facelift 20001.8 T5,700 rpm1,980-5,400 rpm5,950 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMWZ4 (E85)2.5iAUDITT Roadster (8N)Facelift 20001.8 T
Acceleration checkpoints
0-60 mph
0-97 km/h
6.6 s
7.2 s
0-100 km/h
0-62 mph
7.0 s
7.6 s
0-200 km/h
0-124 mph
29.1 s
34.4 s
Top speed
235 km/h
146 mph
228 km/h
142 mph
Drag race simulation
60 ft
18 m
2.5 s
2.5 s
330 ft
101 m
6.5 s
6.7 s
1/8 mile
201 m
9.8 s
10.1 s
1000 ft
305 m
12.6 s
13.0 s
1/4 mile
402 m
15.0 s
15.5 s
Trap speed
1/4 mile
402 m
155 km/h
96 mph
149 km/h
93 mph

Power comparison

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

Chart data table
VehicleValue
BMWZ4 (E85)2.5i
192 hp
143 kW
AUDITT Roadster (8N)Facelift 20001.8 T
190 hp
142 kW

BMW Z4 (E85) 2.5i has 2 hp more than AUDI TT Roadster (8N) Facelift 2000 1.8 T.

The biggest power difference is between AUDI TT Roadster (8N) Facelift 2000 1.8 T and BMW Z4 (E85) 2.5i: 2 hp (1 kW).

Torque comparison

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

Chart data table
VehicleValue
BMWZ4 (E85)2.5i
245 Nm
181 lb-ft
AUDITT Roadster (8N)Facelift 20001.8 T
240 Nm
177 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMWZ4 (E85)2.5i
1,335 kg
2,943 lb
AUDITT Roadster (8N)Facelift 20001.8 T
1,340 kg
2,954 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 (E85)2.5i
235 km/h
146 mph
AUDITT Roadster (8N)Facelift 20001.8 T
228 km/h
142 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
BMWZ4 (E85)2.5i7.0 s
AUDITT Roadster (8N)Facelift 20001.8 T7.6 s

The biggest 0-100 km/h difference is between BMW Z4 (E85) 2.5i and AUDI TT Roadster (8N) Facelift 2000 1.8 T: 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
BMWZ4 (E85)2.5i
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
AUDITT Roadster (8N)Facelift 20001.8 T
8.2 L/100 km
28.7 mpg US
34.4 mpg UK

The biggest fuel consumption difference is between BMW Z4 (E85) 2.5i and AUDI TT Roadster (8N) Facelift 2000 1.8 T: 0.8 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
BMWZ4 (E85)2.5i
144 hp/t
107 kW/t
7.0 kg/hp
AUDITT Roadster (8N)Facelift 20001.8 T
142 hp/t
106 kW/t
7.1 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMWZ4 (E85)2.5i
743 km
462 mi
AUDITT Roadster (8N)Facelift 20001.8 T
671 km
417 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMWZ4 (E85)2.5i
192 hp
143 kW
7.0 s
235 km/h
146 mph
AUDITT Roadster (8N)Facelift 20001.8 T
190 hp
142 kW
7.6 s
228 km/h
142 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 (E85)2.5i
Power
192 hp
143 kW
0-100 km/h7.0 s
Top speed
235 km/h
146 mph
Doors/seats
2 doors
2 seats
Trunk
240 L
8.5 cu ft
Length
4,091 mm
161.1 in
Height
1,299 mm
51.1 in
AUDITT Roadster (8N)Facelift 20001.8 T
Power
190 hp
142 kW
0-100 km/h7.6 s
Top speed
228 km/h
142 mph
Doors/seats
2 doors
2 seats
Trunk
220 L
7.8 cu ft
Length
4,041 mm
159.1 in
Height
1,349 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 (E85)2.5i
Power
192 hp
143 kW
0-100 km/h7.0 s
Top speed
235 km/h
146 mph
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
AUDITT Roadster (8N)Facelift 20001.8 T
Power
190 hp
142 kW
0-100 km/h7.6 s
Top speed
228 km/h
142 mph
8.2 L/100 km
28.7 mpg US
34.4 mpg UK

BMW Z4 (E85) 2.5i 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 (E85)2.5i
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
7.0 s
AUDITT Roadster (8N)Facelift 20001.8 T
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
7.6 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 (E85)2.5i
144 hp/t
107 kW/t
7.0 kg/hp
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
AUDITT Roadster (8N)Facelift 20001.8 T
142 hp/t
106 kW/t
7.1 kg/hp
8.2 L/100 km
28.7 mpg US
34.4 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMWZ4 (E85)2.5iAUDITT Roadster (8N)Facelift 20001.8 T
Power
192 hp
143 kW
190 hp
142 kW
Torque
245 Nm
181 lb-ft
240 Nm
177 lb-ft
Acceleration
7.0 s
7.6 s
Top speed
235 km/h
146 mph
228 km/h
142 mph
Lightness
1,335 kg
2,943 lb
1,340 kg
2,954 lb
Fuel consumption
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
240 L
8.5 cu ft
Length
4,091 mm
161.1 in
Height
1,299 mm
51.1 in
Doors/seats
2 doors
2 seats
Trunk
220 L
7.8 cu ft
Length
4,041 mm
159.1 in
Height
1,349 mm
53.1 in
Range score
743 km
462 mi
671 km
417 mi
CO2 score
-
197 g/km
Trunk score
240 L
8.5 cu ft
220 L
7.8 cu ft
Power-to-weight score
144 hp/t
107 kW/t
7.0 kg/hp
142 hp/t
106 kW/t
7.1 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 (E85) 2.5iAUDI TT Roadster (8N) Facelift 2000 1.8 T
Consumption7.4 L/100 km31.8 mpg US38.2 mpg UK8.2 L/100 km28.7 mpg US34.4 mpg UK
Cost / 100 km12.95 LC100 km14.35 LC100 km
Cost / 100 mi20.84 LC100 mi23.09 LC100 mi
Annual fuel used1,110 L293 US gal244 UK gal1,230 L325 US gal271 UK gal
Annual fuel cost1,943 LC/year2,153 LC/year

Head-to-head comparisons

BMW Z4 (E85) 2.5i

  • Has 2 hp more
  • Has 5 Nm more
  • Is 5 kg lighter
  • Is 0.6 s quicker from 0-100 km/h
  • Has 7 km/h (4 mph) higher top speed
  • Uses 0.8 L/100 km less fuel
  • Has 2 hp/t better power-to-weight
  • Has 73 km (45 mi) more estimated range
  • Has 20 L more trunk volume

Pros

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW Z4 (E85) 2.5i
AUDI TT Roadster (8N) 1.8 T
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BMW Z4 (E85) 2.5i vs AUDI TT Roadster (8N) · Facelift 2000 1.8 T - car comparison - FastVsFaster