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.
More specifically, the tuning house fitted the Z4 with the BMW 320d Efficient Dynamic's 2.0-liter four-cylinder turbocharged diesel engine. After some performance upgrades, the four-pot's output was lifted from 163HP and 380Nm, to 190HP and 420Nm.
AC Schnitzer says the 99d can go from naught to 100km/h (62mph) in 6.9 seconds en route to a top speed of 235km/h (146mph), while returning an impressive fuel consumption of 3.8lt/100km (61.9 mpg US) with CO2 emissions of just 99.18 g/km.
To achieve these striking numbers, the German tuner also reduced the roadster's weight by 230kg (507 pounds).
"With the AC Schnitzer 99d, we've succeeded in building the previously inconceivable: an up-rated performance vehicle whose CO2 emissions have been reduced to 99 g/km and which, despite its sustainability, offers pure driving pleasure. That's Efficient Performance by AC Schnitzer," the company said in a brief statement.
According to the tuner, the price of the 99d is €149,000 or about US$205,500 at today’s exchange rates, but that's about all the details AC Schnitzer is willing to release before unveiling the car at the Geneva Salon.
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