The Comparative Analysis :
BMW Z4 Roadster sDrive23i Sport-Automatic (09 - 11) vs. Audi TT Roadster 1.8 TFSI (15 - 18)
€ 38,800

€ 36,200

€ 38,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 36,200
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ slightly. The BMW Z4 Roadster sDrive23i is 6.2 cm longer, 4.2 cm narrower and 6.4 cm lower than the Audi TT Roadster 1.8 TFSI.
BMW Z4 Roadster sDrive23i
Audi TT Roadster 1.8 TFSI
1291
1790
1951
1355
1832
1966
1790 mm
Width
1832 mm
1951 mm
Width Incl. Mirrors
1966 mm
1291 mm
Height
1355 mm
2496
4239
2505
4177
4239 mm
Length
4177 mm
2496 mm
Wheelbase
2505 mm
Vehicle Weight
BMW Z4 Roadster sDrive23i
Audi TT Roadster 1.8 TFSI
1505 kg
Kerb Weight
1375 kg
1760 kg
Gross Vehicle
Weight
Weight
1620 kg

Weight Difference:
130 kg
8.64 %

General
BMW Z4 Roadster sDrive23i
Audi TT Roadster 1.8 TFSI
E89
Generation
8S
Roadster
Car Body Style
Roadster
Super Unleaded (98 RON)
Fuel Type
Unleaded (95 RON)

Rear-wheel drive
Drive
Front-wheel drive

6-speed automatic transmission
Transmission
6-speed manual transmission
Engine
BMW Z4 Roadster sDrive23i
Audi TT Roadster 1.8 TFSI
Straight-six petrol engine (naturally aspirated engine)
Engine Type
Straight-four petrol engine with turbocharger
BMW N52
Engine Series
VW EA888
N52-B25
Engine Code
CJSA


4
Valves
4
6
Cylinders
4
2497 CC
Engine Capacity
1798 CC
201 bhp
at 6300 rpm
Power
178 bhp
at 5100 rpm
BMW Z4 Roadster sDrive23i
201 bhp
178 bhp
Audi TT Roadster 1.8 TFSI
250 NM
at 2750 rpm
Max. Torque
250 NM
at 1250 rpm
BMW Z4 Roadster sDrive23i
250 NM
250 NM
Audi TT Roadster 1.8 TFSI
Performance
BMW Z4 Roadster sDrive23i
Audi TT Roadster 1.8 TFSI
149 mph
Maximum Speed
147 mph
7.3 sec
Acceleration 0 to 62 mph
7.2 sec
62 mph
62
mph
mph
101 m
0.000 sec

BMW Z4 Roadster sDrive23i
62 mph
62
mph
mph
100 m
0.000 sec

Audi TT Roadster 1.8 TFSI
▶ REPLAY
7.49 kg/bhp
Weight-to-Power Ratio
7.72 kg/bhp
BMW Z4 Roadster sDrive23i
7.49 kg/bhp
7.72 kg/bhp
Audi TT Roadster 1.8 TFSI
Fuel Economy / Emissions
BMW Z4 Roadster sDrive23i
Audi TT Roadster 1.8 TFSI
Fuel Economy
34 mpg
combined
48 mpg
BMW Z4 Roadster sDrive23i
34 mpg
48 mpg
Audi TT Roadster 1.8 TFSI
24 mpg
city
38 mpg
No data
motorway
No data
55 L
Fuel Tank Capacity
50 L
417 mi
Range
526 mi
BMW Z4 Roadster sDrive23i
417 mi
526 mi
Audi TT Roadster 1.8 TFSI
Environmental Impact
155.3 kWh
Total Energy Consumption
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
111.8 kWh
BMW Z4 Roadster sDrive23i
155.3 kWh
111.8 kWh
Audi TT Roadster 1.8 TFSI
Euro 5
Emission Standard
Euro 6b (NEFZ)
192 g/km (NEFZ)
CO2 Emissions
138 g/km (NEFZ)
Practical Convenience
BMW Z4 Roadster sDrive23i
Audi TT Roadster 1.8 TFSI
2
Doors
2
2
No. of Seats
2
255 kg
Maximum Payload
245 kg
310 L
Boot Capacity
280 L








No data
Boot Capacity (Seats Down)
No data