Keffer Hyundai is located near Charlotte, NC in Matthews, NC. A well-maintained vehicle is more efficient, safer, and simply more fun to own and drive. Call us today to schedule your next service visit! We are here to help. Keffer Hyundai is located near Charlotte, NC in Matthews, NC. A well-maintained vehicle is more efficient, safer, and simply more fun to own and drive. Call us today to schedule your next service visit! We are here to help.