The huge Suburban might not be politically correct, but it has been the vehicle of choice for families who won't fit in a minivan or another SUV, or for those who need heavy-duty towing or offroading capabilities. It can seat nine (though more commonly seven or eight) with plenty of room for luggage. A comfortable ride, quiet interior, and a well-mannered V8 engine are among the key attributes. However, handling is ungainly and fuel economy is poor. Test results also apply to the GMC Yukon XL.