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Lexus IS vs Lexus TX: 5-year value retention (77% vs 77%), resale value, and cost of ownership head-to-head. Lexus IS holds its value better.
On five-year value retention the Lexus IS comes out ahead, holding about 77% of its value versus 77% for the Lexus TX. Over the first five years the Lexus IS loses roughly $10,283 while the Lexus TX loses about $12,937 — a gap near $2,654.
First-year drop is the biggest factor: the Lexus IS sheds about 2% in year one versus 4% for the Lexus TX. If you buy used, the steeper early drop is what the original owner absorbs.