The 2001 GMC Yukon is available as a 4-door, 5-seat sport utility. Starting at $32,450, the 2001 GMC Yukon SLE 4x2 is powered by a 4.8L , 8 -cylinder engine mated to an automatic transmission that returns an EPA estimated 15-mpg in the city and 20-mpg on the highway. The top of the line 2001GMCYukonAWD , priced at $ 46,150 , is powered by a 6.0L , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated 12-mpg in the city and 16-mpg on the highway.