The Future of BMW's 5 Series: Quad-Turbocharged Engines and Weight Savings

BMW G30 5 Series 1 photo
Photo: Car Magazine
We’ve seen the G30 5 Series out testing already, even though the current model received its facelift just last year. That means we’re just 2 years away from the new model and the rumor mill is starting to speed up.
The guys from Autobild claim to know a lot more than the rest of the automotive world. Whether they’re right or now, remains to be seen but we took all the info they provided with a grain of salt, as we suggest you do.

According to them, the new model will be losing about 100 kilos (220 lbs) of weight on average. This is one of the ideas we’ve been hearing BMW repeat over and over again and we can see it become reality. With widespread usage of aluminum and CFRP, such numbers can be attained.

Others cannot. For example, the same German publication claims that there’s a 3-liter 354 HP inline 6-cylinder engine in the works. That would be the same unit used on the 340i we mentioned in an early article. However, the power output is a bit optimistic and we’ll tell you why.

According to our own insider over at BMW, the upcoming M2 will use an older generation, upgraded N55 engine making, at most, 370 HP. Developing a 354 HP B58 engine for a ‘regular’ car would leave an incredibly small performance gap in between them. According to him, we should expect the new plants to have, at most, 340 HP.

That’s around where the upcoming biturbo 3-liter inline 6-cylinder diesel engine will fit perfectly. The same source apparently told Autobild that the next 535d model will have 347 HP and 660 Nm (486 lb-ft) of torque instead of the current 313 HP and 630 Nm (465 lb-ft) the current one has. Considering the engines other manufacturers have these days, it seems plausible.

It’s also plausible considering the upgrade the tri-turbo N57S engine on the M550d model will get. It seems like it will evolve to a quad-turbo configuration, pushing 408 HP and 750 Nm (553 lb-ft) of torque out of the 3-liter inline 6-cylinder block, therefore keeping the its title of world’s most powerful 3-liter diesel engine intact.

Last, but not least, the M5 will get up even more powerful version of the S63Tu unit. This one will be making 626 HP and will also be available with all-wheel-drive, as a lot of customers have demanded. Fortunately, xDrive will be only an optional feature that you can purchase separately, leaving the M5 to its traditional rear-wheel drive setup.

Some of these might come true. The 626 HP output for the M5 seems realistic but the new engines will be only a small part of what’s to come in the 5 Series range. BMW has been listening to the complaints people had about the interiors of their cars and are planning to set new standards both in build quality and materials used as well as ergonomics.
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