have you tried our good ol' trusty friend google? But I can tell you now that since that yaris was never sold with a leather interior anywhere in the world (correct me if I'm wrong, but regardless), so you 're going to have to find an automotive upholsterer to custom cut leather pieces to fit your seats, then they're going to have to remove the seats, remove the cloth, stitch on the leather and reinstall the seats. Unless your current seats need replacing anyway this is a very large discretionary expenditure. The other things are pretty easy google for, the sky's the limit in terms of wheels/tyre combos or in car entertainment systems, just depends on how deep your pocket is.