tl;dr This is what you want for road trips/moving lots of stuff.
You convinced yourself that a small sports car was a reasonable family vehicle. I get it. You even took it on a road trip and managed to stuff everything in the frunk and on your kids' laps. This'll totally work.
Oh what happened? Your kids were too loud? Grandma and Grandpa wanted to join you too? You need a machine that's up to the challenge. Sorry even the best 7 seater SUV is going to leave you wanting more room for your stuff.
You need the almighty mini-van. You want The Odyssey! This one is 2009 and runs strong. It's got leather seats, heated seats and air conditioning that runs strong. It even has sun shades! Your family will love your trip and you'll have all the space and comfort you need.
Not to mention the V6 will give you as much power as you need to pass everyone in the left lane.
Time to take that trip!