Mazda Motor Corporation has claimed an unusual 'world first' for a car maker - unveiling what it believes to be the world's longest advertising poster in Tokyo on Tuesday.

The new advertisement, which features the recently launched, redesigned Premacy minivan (to be sold as the 5 overseas), will be on display from February 15 to 28 in the Art Road underground walkway leading to Tokyo Station, in the Marunouchi business district of Japan's capital city.

The 'Family Ties' ad - which measures 311 metres (1,020 feet) in length, or nearly one-third of a kilometre - features 60 family portraits taken by the famous Japanese photographer, Kishin Shinoyama. In all, 106 different images make up the poster.

Celebrity couple Kei Shimizu and Miyuki Kosaka, who are featured in the ad, as well as photographer Shinoyama, attended the official unveiling ceremony in Tokyo.

According to Mazda's research, the currently recognised world's longest poster advertisement, at 274 metres in length, is a 1998 poster for an opera concert in Rome, Italy.

The car maker said it would petition Guinness World Records for official recognition of the world's longest advertisement.