Absolutely sure that Fords using the Zetec E and SE as used in the Focus and others are 100k.
The SE units were 100k from the beginning, the E was 80k, but Ford upped it after finding they would reliably run to 100k.
However,certain Vauxhalls were originally 72k, but many early failures caused the interval to be reduced to 36k. To be fair this was mainly due to water pump failure taking out the belt - sometimes in less than 36k!
Chris