Buick, General Motors' premium brand, made its South Korean debut on Wednesday, unveiling the Electra E7 mid-size plug-in hybrid SUV, aiming to strengthen its presence in the local market. The model was launched at a media showcase held at Dongdaemun Design Plaza in Seoul, marking the official entry of the 120-year-old American brand into the South Korean market. Sales are scheduled to begin in November, with Buick joining Chevrolet, GMC, and Cadillac in GM's product portfolio in South Korea.