New M5 will come with a 4.4 liter bi-turbo V8 with 578 bhp and 720 Nm of torque. It is expected to be introduced near the end of this year.

Here is a fine example of what the upcoming BMW M5 F10 could look like. Bimmerpost forum member Alpine325ci painstakingly photoshopped bits and pieces of existing photos taken at the Geneva Motor Show to create these amazingly realistic renders.

The new M5 will feature a downgrading in engine size, with BMW dropping the 5.0 liter V10 in favor of the 4.4 liter bi-turbo V8 already in use in the X5 M and X6 M. But that engine will be tuned to a more powerful rating than both the original V10 and its variant in the two X models. Power on the M5 will be boosted to 578 bhp with the torque rating climbing to 720 Nm (531 lb-ft) - a whopping 40 percent more than the previous M5.

Astoundingly, BMW says the M5 will consume about 30 percent less fuel than its predecessor thanks to the Bavarian brand's EfficientDynamics technologies. A kinetic energy recovery system (KERS) may also be made available in the new M5.

The next M5 is expected to be introduced sometime near the end of this year. Market launch will likely be sometime around the spring of 2011.