BMW's decision to create the new 'i' sub-brand for the growing number of eco-conscious buyers has apparently rubbed off its partners like AC Schnitzer, as the German tuning firm will be launching a production ready concept based on the Z4 hardtop-roadster at next week's Geneva motor show.
Developed as an eco-friendly sports car that adapts to AC Schnitzer's new motto "Efficient Performance", the 99d gets its name from its CO2 emission levels and the diesel powerplant housed under its hood.
