I should have been less terse. I only wanted to point out its 'old news' -but I love steam, and whilst I love prosaic diesel shunters as much, I do love steam.
I wish they'd do something a bit more streamlined like "Mallard"
If all goes well, the new Pennsylvania T1 should be able to beat it. There are stories of the PPR T1's significantly beating Mallard's record, some say over 140 mph, but that the railroad was too busy to officially beat the record.