Complex sentence: This in stark contrast to the 1990s, when sales of the original Mondeo topped 100,000 per year, and even the second generation model peaked at more than 80,000 in 2001, and was still selling above 50,000 units per year in 2005.
Split into simpler sentences: This in stark contrast to the 1990s, when sales of the original Mondeo topped 100,000 per year, and even the second generation model peaked at more than 80,000 in 2001. It was still selling above 50,000 units per year in 2005.