General Motors and Nissan North America each led five segments (one tie) in the 2005 Total Quality Index (TQI), released Monday by San Diego research firm Strategic Vision. Several new GM products took top honors in their segments. Pontiac’s G6 medium sedan won out over Toyota and Honda entries, as did the Buick Rainier medium sport utility vehicle (SUV). No one corporation dominated, with Toyota leading four segments (2 ties), BMW three (1 tie) Ford three (2 ties), Hyundai two (1 tie), and Honda, Chrysler and Land Rover one each. After a year out of the winner’s circle, BMW reemerged as the top-scoring brand. Nissan North America led as best full-line corporation. Chrysler PT Cruiser continues its winning quality ways by taking the top spot in the "Small Multi-function" category. Unlike J.D. Powers’ Initial Quality Survey, Strategic Vision says its Total Quality Index assesses the complete ownership experience, from buying and owning to driving new vehicles, including attributes and the emotional response to vehicle. More than 40,793 buyers who bought 2005 models in October and November of 2004 supplied data. Buyers rated the following vehicles tops in their segments: (closely ranked scores, if the differences are not statistically significant, are considered ties)