Complex sentence: Thus, after an initial hiatus, production was quickly put on hold, and though officially the model was retired in 1964, most of the cars were produced in 1958 and total to roughly 700 units.
Split into simpler sentences: Thus, after an initial hiatus, production was quickly put on hold, and though officially the model was retired in 1964. Most of the cars were produced in 1958 and total to only 700 units.