specჩვეულებრივი 8-სერიაა, ცხენები ექნება ანალოგიური რაც 650 და 550, შეიძლება ოდნავ ცვილება განიცადა მარ აობსად იგივე ექნება
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The multi-hole injectors of the direct petrol injection system are positioned centrally between the valves and operate at a maximum pressure that has been upped from 200 to 350 bar. This has the effect of optimising both the metering of the fuel and the engine's emissions performance. The V8 unit furthermore features a new ignition system and particularly efficient engine management.
In addition to this, the thermal shielding and the cooling circulation system have also undergone extensive modification. An upstream coolant radiator helps meet the high demands on the engine's temperature management during extremely sporty driving. To ensure both supreme performance characteristics and robustness, the new V8 engine was subject to an exhaustive programme of testing encompassing all potential load situations - from fatigue tests at idle speed to highly dynamic calibration drives on the Nürburgring's Nordschleife circuit.
Thanks to a 50 kW/68 hp increase in output with no impact on weight compared to the engine it replaces, the new V8 unit is now able to generate 390 kW/530 hp, which is on tap between 5,500 and 6,000 rpm. At the same time, maximum torque has been raised by 100 Nm (74 lb-ft) to 750 Nm (553 lb-ft), which is available over a wide rev range from 1,800 to 4,600 rpm for prolonged forward thrust.
The new BMW M850i xDrive Coupe accelerates from 0 to 100 km/h (62 mph) in just 3.7 seconds. The combined fuel consumption of 10.5 - 10.0 litres per 100 kilometres (26.9 - 28.3 mpg imp) and the combined CO2 emissions of 240 - 228 grams per kilometre clearly demonstrate that the increase in the eight-cylinder engine's power has gone hand in hand with improvements to its efficiency too. The emissions performance of the new V8 engine has been further optimised by the inclusion of larger, close-coupled catalytic converters and a gasoline particulate filter, thereby enabling it to fulfil all relevant emission regulations worldwide, including the stringent EU6d-TEMP standard that will come into force from September 2019.
Powerful and efficient straight-six diesel engine
The new BMW 840d xDrive Coupe provides another highly distinctive take on the sports car genre. The unprecedented use of a diesel engine in this segment produces a delightful mix of supreme pulling power and excellent fuel economy. The 3.0-litre six-cylinder in-line diesel unit with BMW TwinPower Turbo technology delivers a maximum output of 235 kW/320 hp and peak torque of 680 Nm (501 lb-ft), which is available as low down as 1,750 rpm.
The engine employs multi-stage turbocharging technology and its performance characteristics permit relaxed cruising at low engine speeds, while also enabling the car to sprint to 100 km/h (62 mph) from rest in only 4.9 seconds. Pressing the accelerator hard prompts a distinctive acoustic accompaniment from the sports exhaust system that has been specially configured for this model.
The common-rail direct injection system employs piezo injectors that operate with a maximum pressure of 2,500 bar, ensuring precise metering of the amount of fuel injected and clean combustion. Besides this, the diesel engine also features a weight-optimised aluminium crankcase with cylinder walls coated using the wire-arc spraying method, thus increasing both the engine's internal efficiency and its robustness. Exhaust gas recirculation for the low-pressure and high-pressure stages further optimises the power unit's fuel consumption and emissions.
The engine's exemplary efficiency reinforces the character of the new BMW 8-Series Coupe as a sports car eminently suitable for long-distance travel that guarantees non-stop driving pleasure even after hundreds of miles out on the road. Average fuel consumption of the new BMW 840d xDrive Coupe comes in at a frugal 6.2 - 5.9 litres per 100 kilometres (45.6 - 47.9 mpg imp), equating to CO2 emissions of 164 - 154 grams per kilometre. The system of emission control incorporating BMW BluePerformance technology comprises a particulate filter, an oxidation catalyst, a NOX adsorption catalyst, as well as an SCR catalyst with AdBlue injection for further reduction of nitrogen oxide emissions. As a result, the new BMW 840d xDrive Coupe complies with the limits of the EU6d-TEMP emission standard.