Honda. According to a search on Youdijie.com, Honda’s car logo is an H sign. This is because H is the graphic trademark of Honda cars and Honda motorcycles. Honda is a Japanese automobile company founded in 1946 and headquartered in Tokyo. Honda has two divisions in China, namely Guangqi Honda and Dongfeng Honda. Honda's main models include Accord, Lingpai, Geshitu, Civic and Odyssey. Therefore, the car brand is Honda.