The P5 owners manual says not to tow anything, so if you do, you could have warranty problems.
Raymond (meinrad on here) has a Hidden Hitch on his P5 that he uses for a bike rack. I think he said the place that installed it said it could be used for towing, but I don't know what the limit is. Maybe he'll pop-up in here with his comments.
The manual has an entire page devoted to one sentence. Here's a quote (from memory). "Don't ever tow anything with your Protege5" The rest of the page is blank. (GRIN)
The trailer I want to get is justa light weight utility trailer. You know, trips to home depot for a couple of sheets of plywood that kind of thing. I sure as heck wouldn't try to tow more than a couple of hundred pounds with a vibe. But at least it has the option.
The problem with the forester is that it's kinda tight on the drivers space. Also right now it's a new car and it's running for a premium price. I found out that my lease isn't up for another 8 monthes so I don't have to replace her car just yet. Maybe by then I'll be able to look at a Forester. They are a bit more expensive as well with the features that I want.
I was going to get a P5 and put a hitch on it so I could tow my dirt bike (with trailer - 500#). However, I changed my mind and opted to order a Mazda6. Hopefully, somebody will have a hitch out for that soon.
When I was in Colorado (Vail area) I saw a P5 with two bikes on top plus pulling a small Uhaul trailer behind it driving through the mountains. He didn't look like he was slowing any though. I'm sure the P5 could pull a small utility trailer but I would tell my dealer that the hitch is for my bikes though.