An ignition system is a system for igniting a fuel-air mixture. Ignition systems are well known in the field of internal combustion engines such as those used in petrol (gasoline) engines used to power the majority of motor vehicles, but they are also used in many other applications such as in oil-fired and gas-fired boilers, rocket engines, etc. The first ignition system to use an electric spark was probably Alessandro Volta's toy electric pistol from the 1780s.
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As it turns out, there is no ignition, or start button in the new Polestar 2. Instead you turn the car on with your, ahem, ...