The cab suv's are acatually pretty small. It may be difficult to get the bags in the back. It would of course depend on how large the bags are.

If there are not skis involved, it's totally possible a regular cab will easily take five bags, you may have to put one on the front seat or something, but they have pretty huge trunks.

There are minivans, but I would go a limo service (you can not reserve cabs at the airport) just because when you don't need one that's all that is in line, and when you do need one, there are none in the line.