The customers from the critical applications sectors (including namely transport, gas industry, power stations, ...) usually require Motorola based hardware for security and reliability reasons.

Important part of embedded applications is based on Motorola processors as they are designed for control applications (while x86 is mainly focused on PC) and they have many peripherals integrated on the chip (CAN, Ethernet, timers...)

Developers of real time applications prefer this family for the architecture and free development tools. PowerPC seems to be a perspective candidate for the further development of embedded applications using RT-Linux.