If you put down big money for a Tesla Model S, one of the features you'll never get bored of is Ludicrous Mode. All it requires is a single press on the car's 17-inch touchscreen and the car gains the ability to go from a standing start to 60MPH in just 2.8 seconds. You can't be told how fast that is -- you need to experience it for yourself. That's exactly what 15 Brits did one April evening, when I took the Tesla's fully electric car onto some unrestricted roads and recorded their reactions.