Jaguar XK
British legend Jaguar unleashed its new XK, a four-seat sports car with a 4.2-liter, 300hp V8 engine and a sequential-shift six-speed automatic gearbox. All-aluminum construction helps keep the weight down. The styling is understated and beautiful but too reminiscent of the new generation of Aston Martins.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.


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