After Roald Amundsen's South Pole expedition in 1911, this [Antarctic] crossing remained, in Shackleton's words, the "one great main object of Antarctic journeyings". Shackleton's expedition failed to accomplish this objective, but became recognized instead as an epic feat of endurance. On this day in 1958, a British team led by Vivian Fuchs completed the first crossing of the Antarctic, covering 2,158 miles from the Weddell Sea to the Ross Sea in 99 days.

https://www.reddit.com/r/HistoryPorn/comments/1t5mvf/snocat_hangs_precariously_over_crevasse_during/
Sno-Cat hangs precariously over Crevasse during Commonwealth Trans-Antarctic Expedition, November/December 1957.

Of the three Tucker Sno-Cats that travelled to the South Pole, door-code 'A' is on display in the Antarctic section of the Canterbury Museum in Christchurch, New Zealand. Door-code 'B' is on display at the Antique Gas and Steam Engine Museum in Vista, California, United States. Door-code 'C' was returned to the UK, and is currently and is currently viewable via appointment at the Science Museum at Wroughton. The fate of the fourth Tucker Sno-Cat door-code 'D' is unknown, and may still be in the vicinity of Shackleton Base. Wikipedia

https://www.gettyimages.co.uk/detail/news-photo/haywire-one-of-the-snowcats-used-by-dr-fuchs-and-his-news-photo/3259261
10th May 1958: 'Haywire', one of the snowcats used by Dr Fuchs and his Commonwealth explorers on their journey across the Antarctic continent, arrives at Tilbury from New Zealand, via Antwerp.

This Snow-Cat must have toured the country. My mother took me to see it on display in Blackpool. Well, it was on a low-loader quite neglected in a car-park at Gynn Square. After all of its trips to desolate places, it looked as though it had been abandoned in Blackpool!