Unlike the Toyota Aygo, the Peugeot 108 or the Citroën C1, this car is one which is not fitted with the common engine supplied by Daihatsu. If you're even slightly interested about the reduction of CO₂-emission, which can be assumed with a car of this size, then you can watch the constructors doing their difficult work while studying the vehicle data.

The Celerio can be had in two versions, with a CO₂ emission value of either 99- or 84 g/km. All you need to do now, is to follow the pull-down menu above, to discover what is actually necessary to bring about such a difference.

First of all, there is the very important compression ratio. How can it be increased from 11 : 1 to 12 : 1 without the engine beginning to knock? This is made possible, e.g., through the adjustable input valve-timing, which is also available in the ECO-Version and prevents the critical compression-firing by making the flow-back of the filling (Atkinson) possible. The DualJet injection probably matches this well.

One can see very nicely, in which RPM-range these measures function, the maximum torque rises slightly, but not the maximum performance. An interesting point is, that the transmission ratios haven't been changed, indeed, the car itself has been lowered by 10 millimetres. The rewards are, a moderate increase in price for all these measures, which include start-stop, hill-holder and LED-daytime driving lights.

It is however a pity, that some of these honest offers do have a fly in the ointment. Thus e.g., the ECO-package cannot be had in the most reasonable, only in the €1200 more expensive Club-version, which sensibly, also has an air-conditioner fitted. The Celerio also has, for a compact car, a formidable 12 year guarantee against rusting through, it must however, visit the workshop once a year.

The automated gear-changing, an absolutely sensible and affordable extra for cars mostly used in urban areas, is not on offer in Germany. The operation feels just like a real automatic. The first video below shows the setup and the effect. The Celerio has been available in countries like India for some time now, considering the traffic conditions there, it has of course, a much greater chance of being widely sold. 10/14