Just get the Myvi, its a nice looking car with plenty of safety features already, much improved over the previous generations and good value for money for new car.

CRZ is more complicated, and remember for used car you need to be prepared for the hybrid battery issue/replacement already. If ok with used car, might as well just get a Suzuki Swift Sport ZC32S, way much better than a CRZ and still more traditional and therefore easy car to maintain.