Usage per kilometre calculated

As regards hybrid cars, we have not yet used the figures from the GHG database, as they are difficult to interpret:

• the ‘plug-in hybrid’ category has a surprisingly low carbon footprint (on a par with electric vehicles), but, more importantly, zero emissions from combustion. So would this be a petrol car that doesn’t use petrol when driven? [A recent thread] on the bilan-GES forum does not explain this inconsistency.
• The difference between the full hybrid Prius and the full hybrid P2 is not explained
• In these two categories, there is no entry-level model.

The FNH-Carbone4 study could be used to calculate the carbon footprint per kilometre of plug-in hybrid vehicles. Here is the key assumption used:

Breakdown of driving modes (combustion engine / electric) for hybrids: 50% / 50% in 2016

However, it is worth noting the recent controversy surrounding the carbon footprint of plug-in hybrid vehicles following a study by Transport & Environment which reported that the actual carbon footprint was incomparable to that claimed by manufacturers.

We have therefore, for the time being, used the calculation from the MicMac calculator, which forms the basis of ‘Nos Gestes Climat’, although the source is unfortunately unavailable:

Hybrid: subtract 15% from the fuel consumption figures above (source: ADEME: http://www2.ademe.fr/servlet/KBaseShow?catid=13655)