for fuel economy improvement to , compared to the prior generation's . The powertrain package is the same as the 2008-2017 Lexus LS 600h & LS 600h L; however, as the fifth-generation LS does not feature this powertrain, it is now unique to the Century. The suspension has been upgraded from the previous double wishbone to a multi-link suspension with supplemental air bags to further enhance ride quality. Toyota first displayed a hybrid engine in the Century at the 1975 Tokyo Motor Show in the Century gas turbine hybrid, with a GT45 gas turbine and electric motor. Century GRMN On 18 September 2018, the website Japanese Nostalgic Car published an article showing photos of a factory appearance package for the Century, called Century GRMN (Gazoo Racing, tuned by the Meister of the Nürburgring). It is not clear whether this will be a one-off or not. On 20 September 2018, an article was published by Japanese website Response showing President of Toyota Motor Corporation Akio Toyoda getting into his modified Century, which did not appear to be the same as the conventional model currently available. The website suggested that a sport-oriented version of the Century might be offered soon. On 25 November 2018, the car appeared at the Toyota GAZOO Racing Festival, where it appeared alongside the fifth generation Supra. At the 2019 Tokyo Auto Salon, a Century GRMN appeared in black. Royal Parade Car On 19 November 2018, the Imperial Household Agency announced a request to provide an open-top parade car for the Coronation Ceremony of Naruhito on 22 October 2019, which was postponed until 10 November 2019 due to Typhoon Hagibis. The parade has been traditionally called Shukuga Onretsu no Gi. Previously, the only parade car used by the Imperial Household Agency was a 1990 Rolls-Royce Corniche convertible, which had been found to be too old and needing repair to bring up to serviceability. The Imperial Household Agency had expressed a desire to have a Japanese automobile manufacturer provide a vehicle built specifically for this motorcade event, and released an official request. On 17 January 2019, it was announced that a Century, modified to the Emperor's specifications, would be provided in convertible form. On 19 September 2019, an image of the custom-built parade vehicle was released, showing a rare four-door convertible with rear conventional doors. The rear seats are higher than those in the standard production hard-top, allowing parade