Tesla has built itself a reputation for making some of the finest, cleanest and most over-engineered automobiles that rich people can buy, and there’s a new addition to this lineup – the Model X. Revealed at Tesla HQ yesterday, the Model X is essentially the well-regarded Model S on stilts – a ‘soccer mom’ Tesla, if you will. The all-electric crossover, unsurprisingly, is packed to its eco-friendly gills with cutting edge technology, and it has one particular feature that at first sounds like a joke – but it’s real.

If ever you find yourself driving your brand new Model X down Sunset Boulevard of an evening, but find that you’ve somewhat implausibly driven into the middle of a chemical weapons assault, all you have to do is hit the ‘bioweapon defense mode’ button in the cabin. This will ensure that the Model X’s air filter, which is apparently 10 times larger than that in a normal car, keeps you safe – it is said to be 300 times better at filtering bacteria, 500 times better at filtering allergens, 700 times better at filtering smog and an incredible 800 times better at filtering viruses.