See also:

Twin-scroll turbocharging
The new four-cylinder engines also feature twin-scroll turbocharging. This means that the exhaust stream from cylinders 1 and 4, and the exhaust stream from cylinders 2 and 3, follow separate spir ...

Exterior
The new 6 Series measures some 3 inches longer and 1.5 inches wider than its predecessor; it's a few tenths of an inch shorter at the roof level. As before, the car maintains a short front overhan ...

Playing a supporting role: The innovative new 8-speed automatic transmission.
Like many new BMW models, the new BMW X3 features an 8-speed automatic transmission which brings smooth shifting, sportiness and efficiency to new levels of perfection. Compared to the exemplary 6 ...