Lexus IS 250 problems by year
691 complaints across 3 model years, 2006–2008. 2007 draws the most at 282; 2008 the fewest at 157.
Read this first
Complaint volume tracks how many cars were sold as much as how reliable they were. A popular model year will always look worse than a rare one. Compare the dominant failure system between years rather than the raw totals.