But over and above all that comes the answer to the only question that matters. The same top-of-the-range Model S records 300-mile charge-to-charge autonomy on the NEDC European test schedule, or just over 260 miles on the USA’s EPA range rating. An enormous 85kWh lithium-ion battery under the floor is responsible for that not-so-little breakthrough. That’s more than four times as much capacity as a Nissan Leaf, and charging it isn’t the work of five minutes. From a typical 32-amp UK on-street charging post, in fact, it’d be the work of about 15 hours.
The Model S comes as standard with an 11kW charger that’ll take power from anything upwards of a standard three-pin 13amp domestic outlet – but charging it this way would be a painfully long process. From a single-phase high-power wallbox charger (another option), it’ll charge at up to 30 miles per hour – Tesla’s own way of expressing a 10-hour total charge time for the range-topping model. Twin onboard chargers are another option, upping your at-home charging speed to a maximum 60 miles-an-hour, at 80 amps single phase.
And away from home, Tesla’s network of three-phase ‘Superchargers’ will roll out across the UK from next year. Already in place in the USA, these fast-chargers deliver a 50 per cent of the Model-S’s 85kWh battery in just 30 minutes, making longer road trips a realistic possibility along certain routes.
So perhaps this isn’t quite the market’s first no-compromise electric car, because lest we forget, the Model-S is set to cost more than £80k in this form. Relative to a like-for-like combustion-engined car, though, it’s remarkably close. With real-world economy of about 23mpg, an Audi S8 will only do 400-miles or so on a 90-litre fill, has an identical claim on the 0-62mph sprint, and is priced from £78k. Meantime, the Audi might set you back a frightening £11,000-a-year on company car tax. The Model-S wouldn’t cost a bean on benefit-in-kind, and an overnight home charge costs less than a fiver at typical off-peak rates.
This is a handsome, expensive-looking saloon. A bit derivative, but you can forgive that from a company making its first ground-up model and keen not to scare people off. Fat chrome doorhandles concealed inside the door panels motor outwards as you unlock it, and grant access to a cabin you’d swear belonged to a concept car if you didn't know better. There’s very little switchgear, no conventional instruments; all is clean, avant-garde 21st century product design, as you’d expect from something designed minutes from Apple’s US HQ. Dominating everything is a 17in touch-sensitive widescreen turned portrait, via which you control the ventilation, headlights and air-suspension systems, as well as read the sat-nav and energy usage monitor – and a web browser if you choose to.
There’s no ignition barrel, no starter button, a simple column gear selector, and the handbrake’s automatic; the powertrain’s live the moment you press the brake pedal. The car’s absurdly easy to drive at low speed, and whisper quiet. The ride’s flat, comfortable and – even on 21s – well isolated. Energy begins to regenerate the moment you lift off the accelerator, and slows the car consistently enough that you only need the brake pedal to hold stationary in traffic.