With 16,957 reporting dealers, the 2024 average advertising spend was $543,539 (or $705 per new vehicle sold), representing an ad-to-sales ratio of 0.74%. In comparison, the 2015 spend was $520,029 (or $633 per vehicle), indicating a 4.5% increase in total spend and an 11.4% increase in cost per vehicle sold over the past decade.