Check the Vin and see for any accidents, etc. (the folks at sajha can help). Even if you did buy it, 13K for a 2001 Lexus IS 300 way too much. As per Kelly Blue book, a used 2001 Lexus IS300 in NY having 80K miles in good condition goes for $12,280 (private party value). Use kbb.com to verify. Also remember that since its 7 years old already (as 2008 models are out now), be prepared for a lotta maintenance work $$$$.