BMW X6, BMW Z4 Roadster and BMW 1 Series Coupe ranked #1 in 2012 Total Quality Index Study Woodcliff Lake, N.J. – August 29, 2012… The BMW X6, BMW Z4 Roadster and BMW 1 Series were ranked highest of their respective segments at the 2012 Total Quality Index™ (TQI) study. Total Quality measures how closely the experience of quality matches the explicit desires of the customer. The BMW X6 Sports Activity Coupe was ranked highest in the Luxury Utility segment. Top industry scores are provided by owners regarding Image, Thoughtfulness, Workmanship, and Style. The BMW Z4 Roadster set the benchmark in the Premium Convertible segment. Along with high scores in Exterior and Interior Design and Styling, the Z4 also delivers in Technical Innovations, Durability and Reliability. Download the entire newsletter. Continue reading...