The large passenger car segment, meaning big sedans and wagons, has taken a huge nosedive in terms of sales and available models over the past decade or so. The Holden Commodore, Chrysler 300, Kia ...

The large passenger car segment, meaning big sedans and wagons, has taken a huge nosedive in terms of sales and available models over the past decade or so. The Holden Commodore, Chrysler 300, Kia ...

BMW has toyed with some mega M car concepts over the years that it never built, and it's neglected some ordinary cars that should have had M versions.