Other Parts Discussed in Thread: AWRL1432,
Looking at the AWRL6432 and AWRL1432 data sheets, 60GHz radar ic is proposed for indoor limited applications such as canbin sensing, CPD, and Occupancy detection, and 77GHz radar ic is proposed for limited applications outside the vehicle such as automated parking, CTA, and BSD.
Is there a reason why not recommend applying the 60GHz radar IC to the outside of the vehicle?
No singularity is known except that the output regulation for 60 GHz is stricter than 77 GHz.