From extended waiting periods for bestselling car models just six months back to record discounts across much of their fleet now — the country’s carmakers are bracing for a progressively worsening slowdown in sales for the first time since the post-pandemic reopening of the economy. Car manufacturers, who have largely bucked the consumption downturn reported by other consumer goods manufacturers across the country, are now in for a reality check. (For the data, keep reading.) There are at least five reasons why car sales have markedly decelerated.