Girlfriend's horse had to be moved to a different yard at the weekend, so the first towing mission for the CX60, and my first go at towing with a PHEV.
Not really much to report. We had the proper Mazda towbar fitted a few weeks back. Press a button in the boot, it flips down. Lock it into position, and once a trailer is plugged in, you get an extra "Towing" drive mode on the dash. Select that, and the car prioritizes using the petrol engine all the time, with the electric motors then seemingly used to assist. We had to get a 7 to 13 pin adapter for the trailer electrics, but that was only a few quid.
On Friday we towed the trailer (about 1100Kgs) plus a load of equipment; steel cabinets, bales of haylage, shavings, etc - probably about 2-300Kgs, so say about 1500Kgs max. The next day we moved His Horseness, he's probably about 650Kgs plus a couple of other bits - so say 1800Kg all up. Total distance from one yard to the next was 6 miles; although the day I took the horse, I took a longer route which doubled the distance. This is because the short route involves some steep hills up some very narrow single track roads. I wasn't worried about the incline, but having the horse on board I wanted to avoid meeting as much traffic as possible and perhaps being forced to back up - stressful at the best of times. So I took the longer round about route to spend more time on larger roads with less elevation.
As for actually towing, the car managed fine, but I do think a diesel still feels more effortless. At no point did I feel like the car couldn't manage (it's rated to pull 2500Kgs) - but being a four cylinder petrol, it obviously starts really revving out as you ask for power, and then I think the electric motors come in to assist when really needed. (I only saw "Boost" appear on the tach a few times, which I think means the EV motors are helping, but the battery did deplete slowly throughout the whole trip, which makes me think they must be providing effort in the background the whole time). Comparatively, our old Sorento 2.2 diesel was only rated for 2,000Kgs, but having a load of low down torque, it never really felt like it was pulling anything.
But overall, I'm happy. The Mazda still felt nice and stable, and has a smaller turning radius, so it's actually a tad easier to manoeuvre a trailer once at the destination - but if I was towing regularly, I reckon a diesel might still be the better choice over a PHEV (or at least, over one with a relatively small engine).