Show. Initial specifications for the roadster were a V10 engine having a displacement of 5.0 L and rated at over . The car's top speed was reported to be over . Automotive photographers capturing the LF-A in various test guises had photographed a disguised convertible test model, dubbed LF-A Spyder, on the Nürburgring as early as October 2005. After its debut at the 2008 North American International Auto Show, the LF-A Roadster was also shown at the 2008 Pebble Beach Concours d'Elegance, the 2008 Geneva Motor Show, the United States Open Championship tournament, and at Lexus exhibits in Japan. A single LF-A racing prototype was also entered into Veranstaltergemeinschaft Langstreckenpokal Nürburgring endurance races at the Nürburgring in May 2008, competing in the SP8 class of VLN events. Media reports uncovered an LFA trademark filing with the United States Patent and Trademark Office in December 2008, with the concept LF-A name dropping its hyphen to become LFA for a possible production model. The second LF-A concepts had an overall length of , and a wheelbase of ; height remained the same as the prior concept, while width grew to . While the original LF-A had been strictly a concept model, the second concept's design reflected engineering analysis for possible production. The exterior design had been restyled to take advantage of the flexibility offered by carbon-fibre construction, with improved aerodynamics and surface features aimed at improving the car's overall top speed. The reshaped exterior featured smoother lines with additional detailing, and more curved surfaces. The aft radiator cooling vents were retained, but integrated into the rear fascia, and the lower side and front air intakes were restyled, along with the forward fascia and headlamps. Designers reportedly drew inspiration from the 1965 2000GT sports coupé, which was also produced in a front-engine, rear-wheel drive layout, and represented the combination of Japanese technology and design ethics in a sports car. However, no design features on the LF-A were directly derived from the 2000GT. The second LF-A concept and accompanying LF-A Roadster were also equipped with a retractable rear wing for improved handling at speed and a two-seat interior with a two-tone colour scheme. 2009 On 5 August 2009, Toyota's new CEO, Akio Toyoda, publicly confirmed production of the LF-A in his speech at a conference held at the Center for Automotive Research in the United States. The production vehicles were expected to carry V10