It seemed weird the airbag didn't deploy on the 1998 Corolla. Googling "1998 corolla airbag" brought me to an article about the same video. Apparently, the Australian-model 1998 Corolla they used in the test wasn't equipped with an airbag.

https://jalopnik.com/this-crash-between-a-2015-and-a-1998-to...