Ground clearance for dinghy

I used to tow a Saturn SL2, which was so low it seemed like you could barely put your arm under it. I once inadvertently ended up on a 40 mile excursion on Forest Service roads that were in places rocky and rutted. I went slowly and carefully through these spots without any issues. I now drive a VW Golf Alltrack wagon (not towable 4 down) with just over 7 inches of ground clearance and I have driven it places that many would swear needed a Jeep Wrangler to get to.

My point is that if you plan on staying on mostly pavement with the occasional trek down a gravel or dirt road, the cars you mentioned will work fine.