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Spanish media has managed to acquire extensive details about the engines BMW will offer in the next generation 7-Series. is citing an unknown German source who apparently shed some light about the motorization options in Bavaria's flagship model set to be offered with a standard wheelbase (G11) and long wheelbase (G12). The range will allegedly kick off with a 730i model packing a four-cylinder 2.0-liter (codenamed B48B20O0) only for the G11 in which it will develop 260 HP (191 kW).

The 740i & 740Li will get a six-cylinder turbo motor (B58B30M0) rated at 330 HP (243 kW) while the 750i & 750Li will offer an eight-cylinder (N63B44O2) with 460 HP (338 kW). The range-topping 760i & 760 Li duo will make use of a V12 6.6-liter (N74B66U1) from the Rolls-Royce Ghost and Wraith with an estimated 570 - 600 HP (419 - 441 kW) and updated for more efficiency.

On the diesel side, the report only mentions a 730d with about 272 HP (200 kW) but 740d and 750d will be offered as well. There should also be plug-in hybrid versions in the form of a 730e with approximately 275 HP (202 kW) and 740e & 740 Le rated at an estimated 400 HP (294 kW). These hybrids are expected to use a nine-speed automatic gearbox, an xDrive all-wheel drive system and offer a 37 miles (60 km) electric range in the 730e and up to 100 km (62 miles) in the 740e & 740 Le. The conventional-powered models are getting an eight-speed auto and xDrive on select versions.

Special thanks go to Luis for the tip!

Gallery: 2016 BMW 7-Series engine lineup leaked? Up to 600 HP and two hybrids

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