Their cards are great but their policies prohibit use in a dash camera. For their MLC Samsung Pro/Pro+ it has this note beside their 10-year warranty.
"Warranty is limited for any type of surveillance system."
Reaching out to Samsung Service I received this response:
"Samsung SD Cards and Micro SD Cards are not intended to be used for continuous recording purposes for example, in surveillance systems such as a car-black box. The reason for this is because the card may fail with constant and obsessive reading and writing. They are not designed to be constantly and continuously written to."