Car comparison

AUDI TTS Roadster (8S) · Facelift 2018 2.0 TFSIvsBMW Z4 (G29) 30i

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

New comparison

AUDI TTS Roadster (8S) · Facelift 2018

2.0 TFSI

306 hp1984 ccGasolineAWDAutomaticTurbochargedRoadster2018-2020
VS

BMW Z4 (G29)

30i

258 hp1998 ccGasolineRWDAutomaticTurbochargedRoadster2018-2022

Comparison overview

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

Best choices

AUDI TTS Roadster (8S) Facelift 2018 2.0 TFSI

  • Quickest 0-100 km/h
    4.8 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    306 hp
    228 kW
  • Highest torque
    400 Nm
    295 lb-ft
  • Best power-to-weight
    205 hp/t
    153 kW/t
    4.9 kg/hp
  • Best overall score
    56/100
  • Best performance score
    68/100
  • Best practicality score
    32/100

BMW Z4 (G29) 30i

  • Lightest
    1,415 kg
    3,120 lb
  • Lowest combined fuel consumption
    6.1 L/100 km
    38.6 mpg US
    46.3 mpg UK
  • Lowest city consumption
    7.4 L/100 km
    31.8 mpg US
    38.2 mpg UK
  • Lowest highway consumption
    5.3 L/100 km
    44.4 mpg US
    53.3 mpg UK
  • Lowest CO2 emissions
    139 g/km
  • Best estimated range
    852 km
    530 mi
  • Largest trunk
    281 L
  • Best economy score
    90/100

Specification comparison

Specification comparison
ModelAUDITTS Roadster (8S)Facelift 20182.0 TFSIBMWZ4 (G29)30i
Power
306hp228kW
258hp192kW
Torque
400Nm295lb-ft
400Nm295lb-ft
Curb weight
1,495kg3,296lb
1,415kg3,120lb
Gross weight
1,825kg4,023lb
1,740kg3,836lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
62.7s99% target: 257 km/h / 160 mph
Calculated
67.9s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
4.8s
5.4s
0-200 km/h
17.0s
Calculated
18.7s
Calculated
0-60 mph
4.6s
Calculated
5.1s
Calculated
Fuel consumption
7.3L/100 km32.2mpg US38.7mpg UK
6.1L/100 km38.6mpg US46.3mpg UK
Fuel consumption city
9.2L/100 km25.6mpg US30.7mpg UK
7.4L/100 km31.8mpg US38.2mpg UK
Fuel consumption highway
6.2L/100 km37.9mpg US45.6mpg UK
5.3L/100 km44.4mpg US53.3mpg UK
Quarter mile
12.9s
Calculated
13.5s
Calculated
Power-to-weight
205hp/t153kW/t93hp/1000 lb
Calculated
182hp/t136kW/t83hp/1000 lb
Calculated
Torque-to-weight
268Nm/t179lb-ft/ton
Calculated
283Nm/t189lb-ft/ton
Calculated
Estimated range
616km383mi
Calculated
852km530mi
Calculated
Displacement
1,984cc121cu in
1,998cc122cu in
Length
4,199mm165in
4,324mm170in
Width
1,832mm72in
1,864mm73in
Height
1,345mm53in
1,304mm51in
Wheelbase
2,505mm99in
2,470mm97in
Front track
1,574mm62in
1,609mm63in
Rear track
1,553mm61in
1,616mm64in
Ground clearance-
117mm5in
Trunk volume
280L
281L
Doors
2
2
Seats
2
2
Fuel tank
45L
52L
CO2 emissions
166g/km
139g/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 TTS Roadster (8S) Facelift 2018 2.0 TFSIBMW Z4 (G29) 30iPowerTorque
  • AUDI TTS Roadster (8S) Facelift 2018 2.0 TFSI: Power / Torque
  • BMW Z4 (G29) 30i: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDITTS Roadster (8S)Facelift 20182.0 TFSI5,400-6,500 rpm2,000-5,300 rpm6,750 rpm
BMWZ4 (G29)30i5,000-6,500 rpm1,550-4,400 rpm6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDITTS Roadster (8S)Facelift 20182.0 TFSIBMWZ4 (G29)30i
Acceleration checkpoints
0-60 mph
0-97 km/h
4.6 s
5.1 s
0-100 km/h
0-62 mph
4.8 s
5.4 s
0-200 km/h
0-124 mph
17.0 s
18.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.1 s
2.3 s
330 ft
101 m
5.6 s
5.9 s
1/8 mile
201 m
8.4 s
8.9 s
1000 ft
305 m
10.9 s
11.4 s
1/4 mile
402 m
12.9 s
13.5 s
Trap speed
1/4 mile
402 m
178 km/h
111 mph
173 km/h
108 mph

Power comparison

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

Chart data table
VehicleValue
AUDITTS Roadster (8S)Facelift 20182.0 TFSI
306 hp
228 kW
BMWZ4 (G29)30i
258 hp
192 kW

AUDI TTS Roadster (8S) Facelift 2018 2.0 TFSI has 48 hp more than BMW Z4 (G29) 30i.

The biggest power difference is between BMW Z4 (G29) 30i and AUDI TTS Roadster (8S) Facelift 2018 2.0 TFSI: 48 hp (36 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDITTS Roadster (8S)Facelift 20182.0 TFSI
400 Nm
295 lb-ft
BMWZ4 (G29)30i
400 Nm
295 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
AUDITTS Roadster (8S)Facelift 20182.0 TFSI
1,495 kg
3,296 lb
BMWZ4 (G29)30i
1,415 kg
3,120 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
AUDITTS Roadster (8S)Facelift 20182.0 TFSI
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMWZ4 (G29)30i
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
AUDITTS Roadster (8S)Facelift 20182.0 TFSI4.8 s
BMWZ4 (G29)30i5.4 s

The biggest 0-100 km/h difference is between AUDI TTS Roadster (8S) Facelift 2018 2.0 TFSI and BMW Z4 (G29) 30i: 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
AUDITTS Roadster (8S)Facelift 20182.0 TFSI
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
BMWZ4 (G29)30i
6.1 L/100 km
38.6 mpg US
46.3 mpg UK

The biggest fuel consumption difference is between BMW Z4 (G29) 30i and AUDI TTS Roadster (8S) Facelift 2018 2.0 TFSI: 1.2 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
AUDITTS Roadster (8S)Facelift 20182.0 TFSI
205 hp/t
153 kW/t
4.9 kg/hp
BMWZ4 (G29)30i
182 hp/t
136 kW/t
5.5 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDITTS Roadster (8S)Facelift 20182.0 TFSI
616 km
383 mi
BMWZ4 (G29)30i
852 km
530 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDITTS Roadster (8S)Facelift 20182.0 TFSI
306 hp
228 kW
4.8 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMWZ4 (G29)30i
258 hp
192 kW
5.4 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
AUDITTS Roadster (8S)Facelift 20182.0 TFSI
Power
306 hp
228 kW
0-100 km/h4.8 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
4,199 mm
165.3 in
Height
1,345 mm
53.0 in
BMWZ4 (G29)30i
Power
258 hp
192 kW
0-100 km/h5.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
2 seats
Trunk
281 L
9.9 cu ft
Length
4,324 mm
170.2 in
Height
1,304 mm
51.3 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
AUDITTS Roadster (8S)Facelift 20182.0 TFSI
Power
306 hp
228 kW
0-100 km/h4.8 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
BMWZ4 (G29)30i
Power
258 hp
192 kW
0-100 km/h5.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
6.1 L/100 km
38.6 mpg US
46.3 mpg UK

AUDI TTS Roadster (8S) Facelift 2018 2.0 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
AUDITTS Roadster (8S)Facelift 20182.0 TFSI
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
4.8 s
BMWZ4 (G29)30i
6.1 L/100 km
38.6 mpg US
46.3 mpg UK
5.4 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
AUDITTS Roadster (8S)Facelift 20182.0 TFSI
205 hp/t
153 kW/t
4.9 kg/hp
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
BMWZ4 (G29)30i
182 hp/t
136 kW/t
5.5 kg/hp
6.1 L/100 km
38.6 mpg US
46.3 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDITTS Roadster (8S)Facelift 20182.0 TFSIBMWZ4 (G29)30i
Power
306 hp
228 kW
258 hp
192 kW
Torque
400 Nm
295 lb-ft
400 Nm
295 lb-ft
Acceleration
4.8 s
5.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,495 kg
3,296 lb
1,415 kg
3,120 lb
Fuel consumption
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
6.1 L/100 km
38.6 mpg US
46.3 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
280 L
9.9 cu ft
Length
4,199 mm
165.3 in
Height
1,345 mm
53.0 in
Doors/seats
2 doors
2 seats
Trunk
281 L
9.9 cu ft
Length
4,324 mm
170.2 in
Height
1,304 mm
51.3 in
Range score
616 km
383 mi
852 km
530 mi
CO2 score
166 g/km
139 g/km
Trunk score
280 L
9.9 cu ft
281 L
9.9 cu ft
Power-to-weight score
205 hp/t
153 kW/t
4.9 kg/hp
182 hp/t
136 kW/t
5.5 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 TTS Roadster (8S) Facelift 2018 2.0 TFSIBMW Z4 (G29) 30i
Consumption7.3 L/100 km32.2 mpg US38.7 mpg UK6.1 L/100 km38.6 mpg US46.3 mpg UK
Cost / 100 km12.78 LC100 km10.67 LC100 km
Cost / 100 mi20.56 LC100 mi17.18 LC100 mi
Annual fuel used1,095 L289 US gal241 UK gal915 L242 US gal201 UK gal
Annual fuel cost1,916 LC/year1,601 LC/year

Head-to-head comparisons

AUDI TTS Roadster (8S) Facelift 2018 2.0 TFSI

  • Has 48 hp more
  • Is 0.6 s quicker from 0-100 km/h
  • Has 22 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
  • Smallest trunk
  • Highest CO2 emissions

BMW Z4 (G29) 30i

  • Is 80 kg lighter
  • Uses 1.2 L/100 km less fuel
  • Has 236 km (147 mi) more estimated range
  • Has 1 L more trunk volume
  • Emits 27 g/km less CO2

Pros

  • Lightest
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power

Choose cars to compare

Brand
Model
Generation
Engine or modification
AUDI TTS Roadster (8S) 2.0 TFSI
BMW Z4 (G29) 30i
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2 vehicles selected

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