Hong Kong : Formula E charges forward with historic Harborfront race

A quiet storm is brewing in the world of motorsport -- a race series unlike any other is generating a buzz in some of the world's best-loved cities.

This weekend sees the start of season three of the Formula E World Championship, a competition exclusively for battery-powered electric cars.
The steepling backdrop of Hong Kong's skyline is the spectacular setting for this year's curtain-raiser with 10 teams and 20 drivers battling it out on the streets around the Central Harborfront -- a route usually jam-packed with cars and choking pollution.
Hong Kong's Observation Wheel lies at the heart of the Formula E street circuit on the Harborfront.
CNN's Supercharged show will be following all the twists and turns of what promises to be another enthralling Formula E season as well as examining the efforts to bring electric mobility to cities all over the world.

Here are five things to know about motorsport's most talked about formula.

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