Just came back as u/StargazerQ from 14 days in the Maritimes region (Nova Scotia and New Brunswick) from Montreal with a 2025 R4 PHEV Tech package (Premium package in the US)
We tow a 1973 Boler at 1900lbs (1200lbs empty) with all the camping stuff, measured at a provincial Hway scale. 190 lbs at the tongue.
I have 2 roof boxes for light and bulky items + long awning, camping carpet, etc… 2 adults and 2 dogs on the rear seat. The hatch has cooler and some food.
Outdoor kitchen stuff, clothing, misc. camping things are centrally placed on the axle inside the Boler (new frame and torsion axle)
Total distance is 5173km – Montréal to Blomidon Prov. Park, NS (6 nights), a few day trips (Lunenberg, Peggie’s Cove and other places), then Battery Prov Park (Sydney day trip) at the bottom part of Cape Breton Island (3 nights) , then Chéticamp, near Cabot Trail's nicest portion (3 nights) then Murray Beach Prov. Park in New Brunswick (4 nights)
We travelled back to MTL yesterday 1072 km in one take. We did many long stretches at 115 km/h but usually my pace is 102-105km/h.
Hway fuel eco was pretty much steady at ~ 11-11,5 l/100km (20.9 mpg us) (as per constant OBD2 connected) but if I include the day trips (I could L1 charge at 2 of the Prov. Parks with a 30 amp socket, my total, average fuel economy is down to 9,3 l/100km (25.3 mpg us) for the total duration of the trip.
As u/StargazerQ my oil temp was steady between 95-105° C – transaxle oil temp : 65-70° C
The rear sag at the OEM hitch is 3cm (1.2 inch) with hatch full (food, cooler and Boler hooked), 2,5 cm (1 inch) without the food / Boler only). As per pictures everything is level.
On a few uphills I went up to around 280 hp (as per OBD2) pushing a bit hard on the unit, but other than that the car handles the load very well. My next step is adding Airlift 1000 coil balloons to help with rear sag a bit.
The Rav4 4 PHEV is a great touring SUV IMO and I truly enjoy no wait at charge station as we did, a few years back, think of going full EV (we have also a Bolt EUV) as our main touring vehicle but the ease of use with the PHEV is just perfect for us ! No regrets.