BMW M3 and M4 buyers will need to upgrade to Competition spec for automatic

BMW is set to unveil its new M3 sedan and M4 coupe in September, and the automaker has finally confirmed the first details. As expected, a 6-speed manual transmission will be offered, though only on the base M3 and M4. In fact, it will be the only transmission on the base M3 and M4 models. Buyers wanting an automatic, in this case an 8-speed, will...