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 Smart and front in the case of the Opel). The first one has a Smart-engineered powertrain under the hood, a 3-cylinder, 6-valves 61hp unit, while the other one gets its power and torque from a 4-cylinder, 16-valves 90hp engine designed by Opel.

The fact that the Opel got tested by the European New Car Assessment Programme (Euro NCAP), while the other contender didn't, offers a slight advantage, as the 4-star rating is better than none. Still, apart from the official crash test results there are other things we need to be aware of. Both vehicles belong to the sports car segment, which is generally classifying them somewhere in the middle safety-wise, but that fact doesn't break the tie between the two cars. On the other hand, if we'd like to consider vehicle mass in this context too, which we definitely should, Tigra offers a potentially life-saving difference of 44% more metal.

Reliability is not the best thing to consider on the make level, but it is worth mentioning that Smart does have a slight advantage, when all the models are taken into account. That's the official data, while our visitors describe reliability of Smart with an average rating of 3.9, and models under the Opel badge with 4.2 out of 5. Independent research findings rank Roadster as average reliability-wise, and Tigra is more or less at the same level.That apart, owners of different cars powered by the same engine as Roadster rank it on average as 4.0, while the one under the competitor's bonnet gets 4.1 out of 5.

Opel is way more agile, reaching 100km/h in 3.1 seconds less than its competitor. In addition to that it accelerates all the way to 180 kilometers per hour, 20km/h more than the other car. When it comes to fuel economy the winner has to be Roadster, averaging around 4.9 liters of fuel per 100 kilometers (58 mpg), in combined cycle. We can't ignore that 24% difference compared to Tigra.

Opel 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, Tigra beats the other contender by far, making it the best choice without even considering other things. It all continues in the same direction, with Opel outracing its opponent in any situation possible, making it better choice for boy racers. It does come at a cost though, and that's the fuel consumption... All together, there's not much more to say, in this case I wouldn't even consider anything but Opel. 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 thousands of similar, yet so different vehicles.