Complex sentence: At present, Guangzhou is the city that uses the most LPG-fueled vehicles in the world, and at the end of 2006,6,500 buses and 16,000 taxis were using LPG, taking up 85% of all buses and taxis.
Split into simpler sentences: At present, Guangzhou is the city that uses the most LPG-fueled vehicles in the world. As of the end of 2006,6,500 buses and 16,000 taxis were using LPG, taking up 85% of all buses and taxis.