I am new to this forum and I am seeking feedback from current ISF owners. I currently drive a 2012 Lexus IS 250 F Sport/ Ultrasonic Blue. Before this car, I had a 2007 Chrysler 300 C SRT8, thus, the power differential was a shock to me. I understand the IS 250 is a LUXURY car not a muscle car, but the speed it has is just sad. Now moving on, I found a 2008 Lexus ISF with 97k miles for cheap. I was interested in buying it, but I have concerns with 97k. What should I look for ( signs of abuse)? What type of maintenance should I expect after 97k? Will it be worth buying extended warranty?