By Nick Carey and Jesus Calero LONDON (Reuters) -Tesla's sales rose in several European markets in September, including France and Denmark, driven by its updated Model Y, but analysts say the automaker risks losing ground as competition intensifies and its ageing lineup remains unchanged. The U.S. electric vehicle maker showed continued growth in Norway and Spain, local industry data showed on Wednesday, with the revised Model Y the best-selling model in Denmark. However, new car registrations - a pro ...