Table schema:
CREATE TABLE CAR_MAKERS (Country VARCHAR); CREATE TABLE COUNTRIES (CountryName VARCHAR, CountryId VARCHAR)

Question: Which of the countries has the most car makers? List the country name.
SQL: SELECT T2.CountryName FROM CAR_MAKERS AS T1 JOIN COUNTRIES AS T2 ON T1.Country = T2.CountryId GROUP BY T1.Country ORDER BY COUNT(*) DESC LIMIT 1