It’s no surprise that Suburban is part of America’s best-selling family of full-size SUVs. It offers truck utility, SUV versatility and the kind of refinements you’d expect in a luxury car. But what might surprise you is that even with all its cargo and family room, this large SUV has impressive efficiency — with V8 fuel economy of 22 MPG highway. Suburban is ready for just about anything. With seating for up to nine adults and room left over for cargo, the Suburban interior is as comfortable as it is spacious.