Thanks to Chinese government incentives pushing 'New Energy Vehicles', the country is the world’s largest electric car market. And there are literally hundreds of domestic start-up firms all battling for a share of it.

There are nearly 500 electric car firms registered in China (the vast bulk of which have yet to make a car), which means that newcomers to that already overcrowded market need to shout loudly to have any chance of making a splash.

In the case of Human Horizons, which recently launched its first car, called the HiPhi 1, that meant taking over a substantial office building near Shanghai, converting it to an arena, inviting more than 500 journalists, influencers and hangers-on – and providing enough food and drink for double that number.