The SEL was the mid-level trim level between 2005 and 2006, and the base trim level from 2007 until 2009. It added the following options to the base SE trim level: a 3.5L "DuraTec" V6 engine (2008 and 2009 Taurus X ONLY), a six-speed automatic transmission (2008 and 2009 Taurus X ONLY), sport-styled seventeen-inch alloy wheels, a security system, an A/M-F/M stereo with a single-disc CD/MP3 player and an auxiliary audio input jack, dual-zone automatic air conditioning with rear controls, a power front driver's seat, a woodgrain interior trim piece, and either Gray Metallic or Arizona Beige Metallic lower body trim.