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Compare any two cars and get our Virtual Adviser™ opinion

Car #1
Make
Model
Variant
Engine
Car #2
Make
Model
Variant
Engine

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2006. - 2009.
S - Sports car
cabriolet, 2 door
rear
Badges
Production
Vehicle class
Body style
Wheel drive
Safety
2006. - 2010.
S - Sports car
cabriolet, 2 door
4 x 4

Marketing

Dimensons & Outlines

4091 mm
1781 mm
1299 mm
240 liters
260 liters
55 liters
Length
Width
Height
Boot (min)
Boot (max)
Fuel tank
4178 mm
1842 mm
1358 mm
250 liters
250 liters
55 liters
2006 BMW Z4 Roadster
2006 Audi TT Roadster

Engine

Petrol
6 - Inline, 4 valves per cylinder
Nat. Asp.
3246 cc
343 hp
365 Nm
Engine
Fuel
Configuration
Aspiration
Displacement
Power
Torque
Volkswagen
3.2 VR6
Petrol
6 - V config, 4 valves per cylinder
Nat. Asp.
3189 cc
250 hp
320 Nm

Performance (manual gearbox)

manual gearbox - 6 gears
1410 kg
5.0 s
250 km/h
18.2 l/100km
8.6 l/100km
12.1 l/100km
292 g/km
Gearbox type
Vehicle weight
Acc. 0-100
Top speed
Cons. (urban)
Cons. (highway)
Cons. (average)
CO2 emissions
manual gearbox - 6 gears
1470 kg
6.1 s
250 km/h
14.8 l/100km
7.8 l/100km
10.4 l/100km
250 g/km

Performance (automatic gearbox)

 
kg
s
km/h
l/100km
l/100km
l/100km
g/km
Gearbox type
Vehicle weight
Acc. 0-100
Top speed
Cons. (urban)
Cons. (highway)
Cons. (average)
CO2 emissions
automatic - 6 gears
1490 kg
5.9 s
250 km/h
13.0 l/100km
7.4 l/100km
9.5 l/100km
227 g/km

Expenses

8800 EUR
Price from
7500 EUR

Virtual Adviser's™ opinion

Overview

Two significantly similar cars, no doubt about that. Still, each one has something different to offer. Having both cars powered by petrol engines and utilizing the 2-door cabriolet body style within the same 'Sports car' segment, the only major difference here really is their wheel drive configuration (rear for the BMW and 4 x 4 in the case of the Audi). The first one has a BMW-engineered powertrain under the hood, a 6-cylinder, 24-valves 343hp unit, while the other one gets its power and torque from a 6-cylinder, 24-valves 250hp engine designed by Volkswagen.

Safety

A starting point here would be to take a look at the results from European New Car Assessment Programme (Euro NCAP) tests which were performed on both of the cars, with the same number of safety stars gained in the process. That aside, let's consider some other aspects which affect safety. Both vehicles belong to the sports car segment, which is generally classifying them somewhere in the middle safety-wise, still it doesn't help us solve our dilemma, does it? On the other hand, if we'd like to consider vehicle mass in this context too, which we definitely should, Audi TT offers a marginal difference of 4% more metal.

Reliability

Reliability is not the best thing to consider on the make level, but it is worth mentioning that both brands display similar results in faults and breakdowns, at least on all of the models level. That's the official data, while our visitors describe reliability of BMW, as well as Audi, with the same average rating of 4.2 out of 5. The same official information place Z4 as average reliability-wise, and TT is more or less at the same level.We should definitely mention that owners of cars with the same powertrain as BMW Z4 rank it on average as 3.0, while the one under the competitor's bonnet gets 4.3 out of 5.

Performance & Fuel economy

BMW is undoubtly more agile, reaching 100km/h in 1.1 seconds less than its competitor. Still, it lacks the power to win the top speed competition, topping at 250 kilometers per hour, exactly the same as the other car does. When it comes to fuel economy the winner has to be Audi TT, averaging around 10.4 liters of fuel per 100 kilometers (27 mpg), in combined cycle. We can't ignore that 16% difference compared to BMW Z4.


Verdict

Audi appears just a bit more reliable, although the difference is truly marginal. The most important thing when deciding between any two vehicles should always be safety, both passive and active. In my opinion, everything taken into account, Audi TT offers slightly better overall protection and takes the lead. From there things take a different direction, with BMW being considerably quicker, thus putting more smile on driver's face. It does come at a cost though, and that's the fuel consumption... It's not difficult to say then that if I'd need to make a choice, it would definitely be the Audi. Anyway, that's the most objective conclusion I could've came up with and it's based solely on the information found on this website. Aspects such as design, practicality, brand value and driving experience are there for you to measure them out. Also, you could use the oportunity to find out which car, everything taken into account, would be the perfect choice for you in the eyes of the virtual adviser, among more than 12.000 different ones in our database.

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