For a 6 cyl car, gas mileage is terrific. Very comfortable, especially the adjustable heated and cooled seats. I don't drink coffee in the car, so cup holders are not an issue, however I definitely would like to see a decent coin holder. My IS 250 now has 12,000 miles on it and the dash sounds like it is going to fall off in my lap. The squeaks and rattles in the dash are very, very annoying and not expected in a vehicle of this supposed quality. Overall, I do like the car, however I don't expect that I will keep it the 3 years I initially thought I would when I bought it.
Heated/cooled seats, navi system, headlamps, stereo system
Eliminating the squeaks and rattles in the dash. Including a decent size coin holder