We have a plugin hybrid, in our life it operates as a purely electric car 90% of the time powered on solar. For the 10% of the time we’re taking it on a longer trip, I’m fine with that 20% less.

Yeah, their real world usage has a huge variance. My parents had one for like a decade and almost never filled it with gas, almost only drove it as an EV. But when they bought it, the previous owner had apparently used it as a pure petrol car … and the petrol engine had terrible efficiency.

Fun fact: the Gen 2 Prius in Europe can drive for several miles on just the battery, but that option was removed in the US, because Toyota knew the battery wouldn’t last the federally required warranty period without too many of them going bad.

That’s why I just got a purely electric vehicle, much simpler mechanically as well.

Interesting that they don’t link to the source.

It depends entirely on who bought the car and who uses it.

I met someone who was told to use the company car (a plug-in hybrid) for all trips. Nothing was explained to them, they were just given a company fuel card.
They had not charged the car in the 6 months they had been using it, and didn’t even know that it could be charged. They assumed it was just a more efficient petrol car.

Another person I know bought a plug-in hybrid for around town trips with occasional long distance trips. They charge it every day, sometimes more than once a day.

The first case would use more fuel than a mild hybrid due to the extra heavy battery, and would have no benefit over a mild hybrid.
They second case would be almost as good as an EV, with a flight penalty for carrying the weight of the engine.

Unfortunately, I suspect the first case is by far the most common for plug-in hybrids.