Complex sentence: In 1963 he promoted as chief designer in Lamborghini, which he designed Lamorghini Espada and Miura cars, and in 1969 he started to design race car for Frank Williams.
Split into simpler sentences: In 1963 he was promoted as chief designer in Lamborghini, where he designed the Espada and Miura. In 1969 he started to design race cars for Frank Williams.