The Miata is an outlier. Mazda went to great lengths to keep the car's weight down since being light weight is a big part of the car's appeal. The extra develop

The Miata is an outlier. Mazda went to great lengths to keep the car's weight down since being light weight is a big part of the car's appeal. The extra development cost and tradeoffs wouldn't make sense for the typical sedan, let alone larger vehicles.