The Buick LaCrosse is a midsize luxury sedan produced over three main generations since 2005, combining style, comfort, and advanced technology. Each generation has evolved in size, features, and performance to meet changing market demands. Known for its spacious interior and smooth ride, the LaCrosse offers a competitive alternative in the midsize luxury segment. This guide details all LaCrosse generations with comprehensive size comparisons, helping buyers understand how this model has transformed over the years.