Complex sentence: Armored cars are in common use by people who feel at risk and can afford them, for example politicians, entrepreneurs, ambassadors, or in higher-risk areas including Iraq, Moscow, Washington D.C. or Mexico City.
Split into simpler sentences: Armored cars are in common use by people who feel at risk and can afford them, for example users of these vehicles include politicians, business owners, entrepreneurs, ambassadors. These vehicles are more commonly used in higher-risk areas including Iraq, Moscow, Washington D.C. or Mexico City.