The industry's first 256 GB eUFS 2.1 solution for automotive applications that incorporates advanced features of the UFS 3.0 standard can handle a temperature range between -40° C and 105° C and provides a sequential read speed of up to 850 MB/s.
https://www.notebookcheck.net/Samsung-begins-mass-production-of-256-GB-eUFS-solutions-for-the-automotive-market.281824.0.html