Other than some minor exterior adjustments, not much changed for the Yukon in 2004. The '04 GMC Yukon full-size SUV comes in 7 trims: Base, Base 4WD, SLE, SLE 4WD, SLT, SLT 4WD, and Denali 4WD. All 7 have 4 doors and room for 6-9 passengers. Gas mileage generally comes out to 15 mpg in the city and 19 on the highway. The '04 Yukon gives you 3 different V8 engines: a 4.8 L, 275 hp model, 4.8 L, 285 hp, and 6.0 L, 325 hp. Max towing capacity for most trims hovers around 8000 lbs. Finally, you'll get up to 105 cubic feet of cargo space with the second and third rows folded down. Overall, drivers like the modern features, powerful V8's, and spacious interior. Exterior and interior materials could use some improvement. Otherwise, those who buy an '04 Yukon will appreciate a solid domestic van. Look for a complete makeover in 2007.