Group 1 - The core point of the article highlights the disappointment of Xiaomi's CEO Lei Jun regarding the discontinuation of the "Lava Orange" color for the Xiaomi SU7 and YU7 models, which he finds visually appealing but too niche for consumer purchase [3][7] - The choice of car colors typically favors mainstream options such as white, black, gray, and silver, which have higher resale values compared to less common colors like green, orange, and yellow [3] - The decision to drop the Lava Orange color is seen as a pragmatic move by Xiaomi, despite the enthusiasm from some car owners for this unique color [7] Group 2 - Lei Jun mentioned that the development of car paint is more complex than commonly perceived, with a development cycle of approximately 15 months to ensure durability against weather conditions over a span of 10 to 20 years [7] - The upcoming new generation Xiaomi SU7, set to launch in April, will offer nine color options, retaining four from the previous generation and introducing new colors including "Capri Blue" [9]