The 2005 GMC Envoy is part of the second and final generation of this midsize SUV. Available in three trims (SLE, SLT, and Denali), 4WD is optional across the range. Two engines are offered: a 275-hp inline six-cylinder for the SLE and SLT, and a 300-hp V8 for the Denali. Both are mated to a four-speed automatic transmission. While its fuel economy lags, the Envoy offers significant towing capability. Safety highlights include an optional StabiliTrak stability control system. Though antiquated by modern standards, the interior features such as dual-zone manual air conditioning, programmable power door locks, and a premium sound system offer some creature comforts.