The author of the article does not state where he got the information from, but he does give out detailed output and torque figures for all the possible variants of the two turbocharged engines. For example, the 1.3-liter 3-cylinder engine is said to be offered in three guises with 163, 201 and 241HP while the larger four-cylinder unit in two variants with 273 and 321HP. That means that the 1.3L unit tops out at an amazing 185hp per liter while the 1.8L at 178HP per liter.
The numbers are suspiciously high for a pair of gasoline engines designated to find their way under the hood of mainstream models such as the 1-Series, so for the time being and until we hear something new, this story remains in 'Rumorville'
Source: Sky , Via: Autoblog.com