How many teams were in the series championnat de france formula renault 2.0?
CREATE TABLE "career_summary" (
  "season" real,
  "series" text,
  "team" text,
  "races" real,
  "wins" real,
  "podiums" real,
  "points" text,
  "position" text
);
SELECT "team" FROM "career_summary" WHERE "series"='Championnat de France Formula Renault 2.0';