Complex sentence: At the beginning of 1964 the TZ was homologated (100 units were needed for homologation) to the Gran Turismo category, after homologation it started to took more class wins in Europe and North-America.
Split into simpler sentences: At the beginning of 1964 the TZ was homologated (100 units were needed for homologation) to the Gran Turismo category. After homologation it started to take more class wins in Europe and North-America.