2024 Mitsubishi Outlander PHEV questions.

So I’m considering one of these, but am still very unclear as to how they work. I appreciate any info I can get. So the motor is connected to a one speed transmission. What rpm does it do when you’re travelling at 125km/h? If I’m on the highway doing 120 and the battery runs out, does the motor just come on get put under load immediately without warming up? What if it’s -10? Worried that this would be harmful. Do you have to pay for remote starting on the app like Mazda? What is the mpg’s when using gas alone? Many thanks. The answers will greatly help me with my decision. I may just get the standard gas model.