BMW has upgraded its fleet website’s tax calculator to include its electric duo of i3 supermini and i8 supercar models.

Previously, only the mainstream petrol and diesel models of BMW’s range were covered, as identified in the 2014 BusinessCar fleet website review that commences on page 14, but since our analysis took place the German giant has moved to add its pioneering plug-in models.

In another stop-press change, Peugeot has also upgraded its already highly rated calculator, although it introduces the error of adding a fuel benefit charge to the electric Ion model.