There we were, in a run-of-the-mill Toyota press conference the day after the Tokyo motor show.

The jet lag was taking its toll, and the room of 200-or-so hacks were weary the day after the day before.

2017 Tokyo motor show - full report and gallery

But out popped two statements, said in such a matter-of-fact way that anyone could have been forgiven for missing their significance. Each, however, has the potential to be world-changing, at least in the world of cars.

First up, was the revelation that Toyota’s research into solid state battery tech is far in advance of where we’d previously believed. So much so, in fact, that it is preparing to productionise it by 2025 at the latest.

Solid state batteries have long been the holy grail of battery tech - smaller, lighter, more power dense and potentially cheaper than today’s batteries. In fact, they have existed for some time, but been too unstable to mass produce. No more, reckoned Toyota - with the spokesman adding that, by the way, Toyota holds more patents on the tech than anyone, and intends to beat every other car maker to having them on sale.