The Comparative Analysis :
BMW Z4 Roadster sDrive30i (09 - 11) vs. Audi TT Roadster 1.8 TFSI (08 - 10)
€ 43,400
€ 31,100
€ 43,400
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 31,100
ⓘ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 sDrive30i is 2.4 inches longer, 2 inches narrower and 2.6 inches lower than the Audi TT Roadster 1.8 TFSI.
BMW Z4 Roadster sDrive30i
Audi TT Roadster 1.8 TFSI
50.8
70.5
76.8
53.5
72.5
76.9
70.5 in
Width
72.5 in
76.8 in
Width Incl. Mirrors
76.9 in
50.8 in
Height
53.5 in
98.3
166.9
97.2
164.5
166.9 in
Length
164.5 in
98.3 in
Wheelbase
97.2 in
Vehicle Weight
BMW Z4 Roadster sDrive30i
Audi TT Roadster 1.8 TFSI
3285 lb
Curb Weight
2998 lb
3847 lb
Gross Vehicle
Weight
Weight
3538 lb
Weight Difference:
287 lb
8.74 %
General
BMW Z4 Roadster sDrive30i
Audi TT Roadster 1.8 TFSI
E89
Generation
8J
Roadster
Car Body Style
Roadster
Premium Unleaded
Fuel Type
Mid-Grade Unleaded
Rear-wheel drive
Drivetrain
Front-wheel drive
6-speed manual transmission
Transmission
6-speed manual transmission
Engine
BMW Z4 Roadster sDrive30i
Audi TT Roadster 1.8 TFSI
Straight-six gasoline engine (naturally aspirated engine)
Engine Type
Straight-four gasoline engine with turbocharger
BMW N52
Engine Series
VW EA888
N52-B30
Engine Code
CDAA
4
Valves
4
6
Cylinders
4
3 L / 147 cu in
Displacement
1.8 L / 88 cu in
254 hp
at 6600 rpm
Power
158 hp
at 4500 rpm
BMW Z4 Roadster sDrive30i
254 hp
158 hp
Audi TT Roadster 1.8 TFSI
229 lb‑ft
at 2600 rpm
Max. Torque
184 lb‑ft
at 1500 rpm
BMW Z4 Roadster sDrive30i
229 lb‑ft
184 lb‑ft
Audi TT Roadster 1.8 TFSI
Performance
BMW Z4 Roadster sDrive30i
Audi TT Roadster 1.8 TFSI
155 mph
Maximum Speed
139 mph
5.8 sec
Acceleration 0 to 62 mph
7.4 sec
62 mph
62
mph
mph
266 ft
0.000 sec
BMW Z4 Roadster sDrive30i
62 mph
62
mph
mph
338 ft
0.000 sec
Audi TT Roadster 1.8 TFSI
▶ REPLAY
12.93 lb/hp
Weight-to-Power Ratio
18.97 lb/hp
BMW Z4 Roadster sDrive30i
12.93 lb/hp
18.97 lb/hp
Audi TT Roadster 1.8 TFSI
Fuel Economy / Emissions
BMW Z4 Roadster sDrive30i
Audi TT Roadster 1.8 TFSI
Fuel Economy
28 mpg
combined
34 mpg
BMW Z4 Roadster sDrive30i
28 mpg
34 mpg
Audi TT Roadster 1.8 TFSI
19 mpg
city
26 mpg
No data
highway
No data
14.5 gal
Fuel Tank Capacity
14.5 gal
402 mi
Range
495 mi
BMW Z4 Roadster sDrive30i
402 mi
495 mi
Audi TT Roadster 1.8 TFSI
Environmental Impact
161.1 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).
130.7 kWh
BMW Z4 Roadster sDrive30i
161.1 kWh
130.7 kWh
Audi TT Roadster 1.8 TFSI
Euro 5
Emission Standard
Euro 5
320 g/mi (NEFZ)
CO2 Emissions
256 g/mi (NEFZ)
Practical Convenience
BMW Z4 Roadster sDrive30i
Audi TT Roadster 1.8 TFSI
2
Doors
2
2
No. of Seats
2
562 lb
Maximum Payload
540 lb
8.8 cu ft
Trunk Volume
7.1 cu ft
No data
Cargo Volume (Seats Down)
No data
