The news is not at all confirmed, but it doesn't mean there isn't some truth behind it. The manufacturer is said to be working on the technology to be based on the six cylinder engine, currently in the BMW line-up, bmwblog.com reported.
The new powerplant will develop 354 horsepower and will first be used on a high performance diesel version of the X5. It will be bulked up with all of the company's technologies, including EfficientDynamics, Start-Stop systems and Brake Energy Regeneration (KERS).
The X5 Performance Diesel will not be the same as the X5M as far as design is concerned as well. The car will have basically the same aerodynamic performance levels as the X5M, but with a smaller central air intake, subtle spoilers for air flow at the leading edge of the bumper and two larger and more exposed exhaust pipes.
The new triturbo engine will be fitted on both the X5 and X6 SUVs sometimes in the future. The German manufacturer also has in mind to fit the powerplant on other models of its range as well, starting with the 5 and 7 Series and ending up with the 5 and 6 ones.