McLaren Automotive has announced a package of enhancements that will make its 12C high performance sports car even more invigorating to drive yet even easier to live with. Headlining the changes is a 25hp power increase. It takes the maximum output of the mid mounted, twin turbocharged V8 engine to 616hp to give yet more vivid acceleration at track speeds with no loss in efficiency. The new McLaren 12C Spider is the second vehicle in the growing range of high performance sports cars from McLaren Automotive. This lightweight, mid-engine opentop sports car combines the astonishing performance of the 12C with the increased exhilaration of roof-down motoring. Unlike most other spiders or convertibles, the 12C Spider offers the same performance, handling and driver enjoyment as the fixed-roof coupé version. The 12C Spider uses the industry-leading carbon fiber MonoCell as the 12C, which needs no extra strengthening to provide the necessary rigidity and strength for an open roof car.