A Mac X probably has the greatest cabin and performance under power to weight ratio of any boat out there. Since the X is the older version of the Mac motor-sailer, you're likely to find one for less money than the M.
I sold my big boat and got an X specifically to trailer (8 ft overall width on the trailer - legal in all states) to the Erie Canal*, the Finger Lakes**, and the Thousand Islands***, plus I plan on moving south of the Mason-Dixon Line in a couple of years and didn't want to pass on an opportunity to sell the big boat (buyer offered more than I paid for it :dance

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Take the spars off, leave the swing keel in (it retracts all the way, so no harm leaving it, and it improves steering and docking at low speeds, even just down a little), and buy or make shoal draft rudders if you like, though the rudders you could probably live without. Leave it full of ballast water if you're going hull speed or less, but it'll go faster without ballast if you want to go fast (mind the limits of where and how many souls you carry, though). I pull my 18 YO son on a wakeboard with a 50 hp Honda - it'll move for a sailboat, and that's with the mast up - should do better with no spars and rigging.
The X has an enclosed head (with a real door), and a big cabin for a little sailboat. Loads of sleeping space. For an inexpensive toy, it's got a lot to offer.
Oh, and it's unsinkable, meaning there is enough foam floatation that it won't go to the bottom if capsized.
Keep the spars and other sailing gear, and you most likely can sell it for what you paid for it.
I don't want to sound like a MacGregor cheerleader, but for what it's designed to do, and the price point it's designed to hit, it's about as good as it gets. It's nothing like the keelboats I've had, or the big trawler I had an interest in, but for a few years around here, it's just right.
Oh, and it tows just fine with the Admiral's Honda Odyssey, even on the highway. Seems OK with my new Highlander, but I haven't had it on the highway yet. Going to put disc brakes on the second axle once it's in its slip, as the more braking the better when the tow vehicle is marginal. Or any time, for that matter.
*Long trip east, unstep the mast with a derrick or crane, and store on the hard, then long trip back through the canal
**Only accessible from the Canal, and then only a couple of them. Deep keel makes small lake sailing a bit limited.
***Long trip out there, downwind usually, much longer back, leaving no time to explore. A few hours by trailer with the Mac, and shoal draft (9" with boards up and no ballast, reportedly) can go almost anywhere.