How does BMW make the new 3 series at “effortless” speed


BMW has to come up with an answer when we say genesis g 70 is more of a 3 series than an actual 3 series. They have: please meet the new 2019 BMW 3 series. By specification, it’s certainly a pretty good foundation for m3, and that’s for sure.

But what do you think about appearance? The new 3 is lighter, smoother, wider, taller and longer, and you get a more dramatic grille nose than ever before. BMW’s team at the Paris motor show also told me confidently, “” what you see here is not a small 5 series.” ” The audience I spoke to today seemed less interested in BMW’s evolutionary design approach, but since the technology used in the car is advertised as “” brand new,” “I wanted to know what really matters. With this in mind, I’ve turned to two BMW employees: Peter Langen, senior vice President of driving dynamics, and Robert Rothmiller, functional design and integrated driving dynamics.

Peter Langen, who is not new to the game, said if there’s one thing that makes the 3 series a benchmark, it’s precision. This comes from understanding the interaction between body and chassis components. The stiffness of the body structure and suspension is up to 50%, depending on how you measure it. There are new components, such as a limited-slip differential, which work with traction control and steering. The bogies are faster than the current 3-series, and the differences between driving modes are dialed, giving you more feedback in motion mode. In the reduced m motion suspension and the optional adaptive m suspension, the spring rate increased by 16%.

BMW says the real magic is here, in this new damping system – a non-electronic device unlike the 8 series. Rothmiller says this is about BMW’s “” dampers within dampers” “:

It’s different from the front axis to the back axis. On the front axle, we have a hydraulic rebound plug, which is basically an extra ring on the piston rod that dives into a slightly smaller internal cone at the top of the damper. So in order to bounce, as the car moves up, it can prevent you from getting tired. On the back axle – because we have a 3 series with a potential 1100 to 1300 pounds. Extra loads (from passengers, cargo and potential trailers), we don’t need that much rebound. We need compression, so we have a compression stop which is basically under the normal valve. This is an additional valve, again diving into the compression side of a smaller inner tube, the lower part. If you’re driving on a choppy road, the front axle can help you throw out, the back axle can help you dive in, or push past. We call it “skyhook” and you’re drawn to the sky and never lose your horizontal position.

The engineering team optimized the kinematics of the front and rear axles several years ago, eventually making the front end more agile, with better mechanical feedback, and the back end producing less camber, thus reducing the tendency to oversteer. This gives the car a neutral steering balance, plus the car’s 50-50 weight distribution, which helps build driver confidence.

One of their points is that the 2019 series is not aimed at an extremely fast lap (like m3), but a lot of easy and fast hoops. This will make more than 99% of future series 3 buyers really happy.


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