I had an interesting question today about using a UDOO Neo board instead of the Kinetis board on the Freescale Cup car for the EMEA 2016 challenge. The i.MX6 product family is a processor whereas the rules specify to use a 32bit MCU... difference there already. In addition, UDOO Neo uses a i.MX6 SoloX which combines an ARM A9 processor and an ARM Cortex M4 MCU, this doubles the rule violation stating that there can be on 1 computing element on the board (in addition of being a CPU and not a MCU).
Conclusion: i.MX family processors are not allowed on the Freescale Cup EMEA Challenge 2016 per the rules communicated at the time of this post.