On National's US fleet list, it lists minivans as Pontiac Montana or similar. Is that what they are using now? Would it be enough to hold 6 (4 adults and 2 small kids) plus luggage for 9 days? Say 6 suitcases, a few small carryons, and a VERY compact stroller? We have a Honda Odyssey, and I suspect we'd fit in for a short drive, but have no experience with other minivans.