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First a side note to say that this engine is equipped with a particulate filter from the ground up, and it obeys Euro 4 emission standards already. But that's merely the point here...
The meat is that: the basis from the engine is the class leading, inline 6, 3.0l turbodiesel engine that already propels with ease the 330d and X3 3.0d (204hp) on one side and the 530d, 730d and X5 3.0d (218 hp) on the other. But in the new 535d, this engine has been fitted with dual stage turbocharging: a small turbo for low revs, a big one for high revs. Absolute pressure is up from 2.3 bars in 218 hp guise to 2.85 bars here. Compression ratio has been lowered from 17:1 to 16.5:1. This system has permitted to drop variable vane turbochargers entirely.
And it's not quite new, since this engine has been used notably in the X5 that raced at the Paris Dakar and ended up 3rd. But it's the first time it's used in a production car.
Results : max torque 560 Nm at 2000 rpm (500 of which is already available at 1200 rpm, 530 at 1500), peak power 200 kW (272 hp) at 4400 rpm. We're speaking 91 hp per litre here, that's the world record of specific power for a turbocharged Diesel powerplant. 560 Nm is roughly 413 lbft.
According to BMW, this propels the porky, 1700 kg 5 series from 0 to 60 in 6.5 seconds. Better still, the kilometer from a standstill is said to be achieved in 25'9! To give you an idea of how fast this is, consider the fact that the current 330d has been measured in 28'2, the current 530d in 28'5, the Boxster S doesn't do any better, while my current car (Opel Speedster Turbo), praised for its performance, just does 0'9 better in 25 seconds flat!
All this while boasting, always according to the manufacturer, a combined Euro cycle in the high 30s...