LOS ANGELES, California - Lexus is showing its latest concept, the LF-C2, at the 2014 Los Angeles auto show. The new open-topped (it has neither roof nor cabin covering) concept hints at the design future for the automaker.The LF-C2 is 4.7m long, 1.8 wide and 1.3m tall, a 2+2 concept that could be the basis for a drop-top variant of the RC Coupe.Lexus US group vice-president and general manager, Jeff Bracken, said: “This concept shows the world Lexus’s devotion to emotional design and passion for an exceptional driving experience.”SPINDLE GRILLE REVISEDThe concept also shows a new version of the automaker’s signature spindle grille that uses a 3D, braided-mesh, effect. Its triangular diode headlights were, the autmaker says, inspired by the brand's sports cars. Vents in the front bumper direct cooling air to the brakes and help to manage airflow.IMAGE GALLERY: 2014 Lexus LF-C2A sweeping line extends along its flanks from the front bumper to the steep-angled A-pillar. Small vents in the sills direct air to the rear brakes, exiting through fin-like diffusers. The rear has L-shaped lights, four chromed exhausts and a new rear diffuser design. The concept rides on five-spoked 20” alloys rims.'BEAUTY OF LIGHT'Lexus LF-C2 chief designer Yasuo Kajino said: “We’ve been instinctively drawn to and inspired by those things that capture the beauty of light. When you put something in the right light, people see it in a way they never have before.”The interior facia has a conventional instrument cluster, a central video screen controlled by a touch pad, and an analogue clock set between the central air vents. It also has soft-touch white/grey leather surfaces and light diodes below the windows.