奧迪a8車長5.3米,a6車長5米,a8比a6長25釐米
車身尺寸方面,A8L為5302mm*1945mm*1487mm,軸距3128mm,A6L為5036mm*1874mm*1466mm,軸距3012 mm,尺寸方面,A8L比A6L大