Back in 2009, at the Geneva auto show, Nissan stunned the auto design world with its achingly pretty Infiniti Essence coupe. This year the company’s focus has shifted to four-dour design.Nissan’s legendary chief designer, Shiro Nakumura, focused his team’s talents on producing a concept car that encapsulates Nissan’s long-term sedan design goals.The result is a suicide-door sedan called the Ellure and it was the highlight of Nissan display at this week’s Los Angeles auto show. BETTER THAN TIIDAThe Ellure has front-wheel drive, fishhook front and rear light clusters (evolved from the 370Z) and looks, well, very alluring.The design is compact yet purposeful and was, according to Nakumura, inspired by the Japanese Samurai culture. Specifically, the shape of the large polished copies the form of a kamishino samurai coat; at the rear, a Shinto shrine gate inspired the boot’s high trim line. The car rides on 21" rims shod with Michelin low-resistance tyres and is powered by a supercharged 2.5-litre internal combustion engine augmented by a 25kW electric motor drawing power from a lithium-ion battery pack. MOBILE LOUNGE: The big-doored Ellure comes with a curved rear bench seat. The Ellure’s cabin is easily accessible through rear-hinged "suicide" doors and has a lounge-style bench and the front passenger’s journey is made even more comfortable by a deployable Ottoman.The infotainment, ventilation and signalling controls are all digitised with a generous collection of touch-screen surfaces.Nissan says the Ellure is purely a concept yet it should provide some design direction for a company that has not, except for its Infiniti, built a credible front-wheel drive sedan for years.