Complex sentence: Beginning in 1990, all North American M-cars were produced at CAMI Automotive, a 50-50 joint venture between General Motors and Suzuki in Ingersoll, Ontario, Canada, although Japanese production continued to source Canada bound sedan models.
Split into simpler sentences: Beginning in 1990, all North American M-cars were produced at CAMI Automotive, a 50-50 joint venture between General Motors and Suzuki in Ingersoll, Ontario, Canada. Production was Japan-sourced until 1990 manufacture commenced at CAMI Automotive, although Japanese production continued to source Canada bound sedan models.