At this time of the year, market comparisons with a year ago can be distorted in particular by when Easter - and its associated public holidays - fell. Last year it fell in April, this year March. That – and one less Sunday - means that April this year had more selling days than last year. So the 2.1% estimated increase in West European car sales In April is not as reassuring as it looks. In fact, JD Power-LMC says that the seasonally adjusted annualised running rate was just 13.8 million units – sharply down on March.