Complex sentence: In January 1986 the Panda received a substantial overhaul and a series of significant mechanical improvements, most of these changes resulted in the majority of parts being changed and redesigned, making many of the Mk1 and Mk2 Panda parts incompatible between models.
Split into simpler sentences: In January 1986 the Panda received a substantial overhaul and a series of significant mechanical improvements. Most of these changes resulted in the majority of parts being changed and redesigned, making many of the Mk1 and Mk2 Panda parts incompatible between models.