All of the T's coaches are up to the latest crashworthy standards. Metrolink's Rotem cabs have those those new false locomotive-like noses on the ends for paranoia-level protection above and beyond the current regs:
That's not really as much above-and-beyond protection as it looks. You're talking minute degrees of difference at the trade-off of there being no pass-thru door or any capability of running the cab car mid-set as a blind trailer on an as-needed basis (which often happens on very large fleets). And it's not a new idea. The very first
Budd SPV-2000 pilot cars did that 37 years ago before their faux-noses were removed out of general pointlessness.
If you're looking for a next-generation pass-thru cab car with *somewhat*-enhanced crashworthiness, it's probably going to look something like Amtrak's new Nippon-Sharyo corridor-configured Superliners currently on-order:
Just a little bit of evolutionary rounding to set the engineer's cab back a little. And still...splitting-hairs levels of difference. Our coaches have plenty good crashworthiness.