Hi Dudes, it does not work quite like like that:
Our PHEV in the summer does a regular 32-34 miles in the summer, however the fast you go go the less the range, on the motorway at 55 mph 30/31 at 60 it drops to nearer 28 miles.
Lithium batteries tend to be most efficient at 25 degrees C as temperature drop so does some of it efficiency, off the top of my head a % per degree drop i.e @ ) degrees a 25% drop, However as the EV/PHEV regenerative energy system kicks in and the batteries are put underload the batteries should warm up.
Once the batteries deplete to the 80% the regenerative charging system kicks in, below 50% the system is more efficient to regenerate.
The Outlander PHEV has electric motor on both front 80kW and rear 90kW axle feeding energy as opposed to Volvo/VW which only has a single motor built into the gearbox.
Both Toyota/Mitsubishi (plus the latest Nissan Hybrid) ICE powers a generator/batteries to electric motors, were as Volvo/VW use a conventional transmission transaxle.
Sorry I cannot explain better my brain is a bit fudged at the moment, the info is in my head hopefully Julie and Brydo can explain it better.
Unfortunately I have suffered a brain injury and occasionally I get confused and often say the wrong thing.