For the first time since 2011, European auto sales went up according to new data out this morning. After 18 months of declining sales, new car registrations rose 1.7 percent for the European Union in April.

But don’t celebrate yet. The reason for the uptick has a lot to do with this year’s calendar, as April has two more business days than it did in 2012. Click on the audio player above to hear more from the BBC’s transport correspondent Richard Westcott.