In 58,223,978 New York DMV initial inspections, 2.4% of cars aged 13-15 years (the peak age band) failed the safety inspection against 0.4% of cars under 3 years.
What it shows: 13-15 is the largest at 2.4%, followed by <3 at 0.4%; the smallest shown is <3 at 0.4%.
Data and chart by CalcScrape: Car Inspection Cost Calculator