The 1999 GMC Suburban is a member of the ninth generation (1992-1999) of this classic full-sized SUV. It comes with two engine options - a 5.7 L V8 that generates 255 horsepower or a 6.5 L turbo diesel V8 with 180 horsepower. Either engine is connected to a four-speed automatic transmission. Two drivetrain options are available: rear-wheel drive or four-wheel drive. The Suburban comes in two trims: the base SLT or the upper-tier SLE. Standard features include ABS brakes, an AM/FM radio, and seating for up to nine passengers. Despite its age, the '99 Suburban offers spacious interiors and substantial towing capabilities.