Starting from this fall, the Z4 roadster will no longer be available in the States with BMW's venerable 3.0-liter normally aspirated straight-six. Instead, the Bavarian company will replace the sDrive30i with the sDrive28i that features the new N20 2.0-liter four-cylinder engine with a twin-scroll turbocharger.
Just for the record, the Z4 sDrive35i and sDrive35is with 3.0-liter turbocharged inline-six engines will continue.
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