English language in southern England
South East England and the Home Counties (the counties bordering London) tend to reflect the interface between the London region and other regional accents. Affluent districts are associated with a modified Received Pronunciation (RP) accent, reflecting their traditional popularity with upper middle and upper-class residents which has spread throughout more social classes broadly in rural areas with commuting access to London. Less affluent areas have traditionally mainstream London accents (that is, variants of the Estuary English accent) that grade into southern rural outside urban areas.
North American English regional phonology
The r-colored vowel of "cart" is back and often rounded , and not fronted as it famously is in Boston. New York City and its surrounding areas are also known for a complicated short-"a" split into lax versus tense , so that words, for example, like "cast", "calf", and "cab" have a different, higher, tenser vowel sound than "cat", "catch", and "cap". The New York accent is well attested in American movies and television shows, often exaggerated, and especially ones about American mobsters from the area. Though it is sometimes known as a "Bronx" or "Brooklyn accent", no research has confirmed differences of accent between the city's boroughs.