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Watch Tesla Model S testing new titanium armor

In a missive signed by Elon Musk himself, Tesla announced it would be adding titanium plates and aluminum deflectors to all new Model S sedans and offering free retrofits for the 20,000 or so existing EVs. The company earlier offered an over-the-air software update to raise the ground clearance of the Model S so the car would be more likely to clear dangerous road debris. The actions were in response to well-publicized fires in the electric luxury sedans.

Concept Car of the Week: Ford Ghia Focus (1992)

As far back as the 1960s, Luigi Colani was preaching about organic design, and the 'biodynamic' forms that eventually became his signature. However, organic design didn't gain widespread popularity among car designers until the late 1980s and early '90s, and no car paid a greater tribute to nature and its forms than the Ghia Focus. Designed entirely by Taru Lahti only two years after graduating, the concept was a real breakthrough for the usually conservative American brand.

Kia Cadenza (2014)

Kia's Cadenza has been unveiled at the 2013 North American International Auto Show. Designed under the direction of Peter Schreyer – now president of the company – the premium sedan has quad headlamps that flank the grille and a wide lower fascia with chrome trim accents around the fog lamps and grille. The greenhouse is framed by a chrome bezel that flares while a sharp character line that starts from behind the front wheelarch rises gently into the rear lamps.