Infiniti is bringing us back to the 1940s with its Prototype 9 roadster, which is going to debut this month at the 2017 Pebble Beach Concours d'Elegance. On the outside the Prototype 9 is a sexy retro concept, but under the skin it's all about the future, since it's powered by the next-generation Nissan Leaf's electric powertrain.
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