But there's a catch.
BMW regularly updates the list of optional features for its models throughout their respective lifecycles, but not all global markets benefit equally. The latest new option for the BMW 3 Series and 4 Series is a prime example. The German automaker has just announced the carbon fiber roof panel will be available beginning in March for the M340i xDrive and M440i xDrive. It's already standard on the M3 and M4, and other M models like the M5 and M8.
Unfortunately, this is for Europe only. The press release made no mention of a US market debut though we've reached out to BMW to clarify and we'll update this space if we learn anything.
The M Carbon roof not only helps to shave weight but also lowers the vehicle's center of gravity for more agile handling. Along with the M340i and M440i, this roof will also be optional on the diesel-powered M340d xDrive and M440d xDrive. Both vehicles are also overseas-only. The carbon fiber roof panel on the M3 is nothing new.
It dates back to 2003 when it was made available on the E46 M3 CSL, which weighed 243 pounds less than the standard E46 M3. Its E92 coupe successor saw the roof become standard but didn't make it to the sedan until the F80 arrived in 2014.
There is reason to be hopeful American M340i and M440i buyers could soon have this option as it's already available on the M850i xDrive coupe and Gran Coupe. Don't expect less expensive 3 and 4 Series trims to get it, however.
BMW's press release also states new carbon fiber interior trims for both models will soon be available, as well as the M440i xDrive Convertible which, quite obviously, does not require a carbon-fiber roof. Pricing details have not yet been made available but in the case of the 850i xDrive coupe, the lightweight roof is a $3,000 standalone option.