Complex sentence: Avis currently operates over 4000 branch offices world-wide, including locations in Australia and New Zealand, the Central American and Caribbean regions, South America and Africa, and is one of the largest vehicle rental agencies in the world.
Split into simpler sentences: Avis currently operates over 4000 branch offices world-wide, including locations in Australia, New Zealand, the Central American and Caribbean regions, South America and Africa. Avis is one of the largest vehicle rental agencies in the world.