The standard X3 models are expected to maintain a choice between four- and six-cylinder engines, each tweaked to produce an extra 15 horsepower, while a new X3 M40i is said to produce 360 horsepower via a twin-turbocharged inline six, according to German outlet Autobild.
The hybrid model will allegedly pair a 2.0-liter gasoline engine with a 95-horsepower electric motor, combining for up to 300 ponies and 700 lb-ft of twist. Electric-only range is said to be around 31 miles, with a fuel-efficiency rating around 62 mpg US.
The company is expected to build a true X3 M edition, allegedly powered by the same 425-horsepower engine found under the hood of the current-generation M3 and M4. The package is not expected to arrive until sometime in 2018, reportedly alongside a refreshed X4.
All of the X3 and X4 variants are said to be underpinned by a new modular platform, which is said to offer improved interior space and more comfortable seats.
The company has not yet officially confirmed any details from the report.
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