2017 BMW 750d: Quad Turbo Diesel debuted in Frozen Arctic Grey

3-Series | October 4th, 2016 by 3
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The second world premiere at the BMW stand at the 2016 Paris Motor Show was the new BMW 750d xDrive with a quad turbo diesel …

The second world premiere at the BMW stand at the 2016 Paris Motor Show was the new BMW 750d xDrive with a quad turbo diesel engine. Maybe not as flashy as the X2 Concept premiere, the powerful and economical 7 Series is just as impressive at a first glance. The car presented in Paris is the BMW xDrive 750Ld wearing a matte finish in the Individual Frozen Artic Grey color with some metallic flakes at closer inspection. The chrome-plated elements of the Design Pure Excellence package also provide some shiny accents for the matte paintwork.

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Under the hood, the 2017 750d and 750Ld are fitted with the monstrous diesel engine that is now good for 400 PS (394 HP) and 760 Nm (560 lb-ft) of torque, while not going over three liters of displacement. The new mill is capable of such outstanding output figures thanks to its four turbochargers, two for every three cylinders. BMW decided to drop the previous arrangement that had two small turbos accompanied by a bigger one, for a better throttle response and more efficiency.

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The turbos aren’t the only new thing this engine brings into play, though. Apart from the increased power figure, the efficiency of the new mill is better than the one of the old unit. This was achieved thanks to a host of measures, such as the increase in combustion pressure (from 200 to 210 bar), five-layer cylinder head gasket, cylinder bores with a twin-wire arc-sprayed coating and pistons made from an aluminum/silicon alloy with remelted bowl rims, bronze liners in the pin eyes and centrally controlled cooling.

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The 2017 BMW 750d xDrive accelerates from standstill to 100 km/h (62 mph) in 4.6 seconds (4.7 seconds for the long wheelbase model) which is 0.3 seconds faster than its predecessor. On top of that, the uber-diesel models are now just 0.2 seconds slower than the top of the range 750i.

All of that comes with increased efficiency. According to BMW, the new 750d is 11 percent more efficient, with mpg ratings between 39.8 and 41.2 mpg (5.7 to 5.9 l/100km) on average in the EU test cycle. Compared to the 750i’s claimed 29 mpg (8.1 l/100km) the difference should be notable.

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[Photos: Bimmertoday]

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