IS 250, 2.5L V6 DOHC 24V VVT-i, 6-Speed Automatic Electronic with ECT-i, AWD, Black Onyx, and Cashmere w/Semi-Aniline Leather Seat Trim or Perforated Leather Seat Trim. Are you still driving around that old thing? Come on down today and get into this great-looking 2006 Lexus IS! J.d. Power has named the 2006 IS as the highest ranked in Overall Performance and Design in its class. One-of-a-kind.