BMW i4 M50 driving at 225 km/h in Germany



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49 thoughts on “BMW i4 M50 driving at 225 km/h in Germany”

  1. Electric motor actually has higher losses due to higher frequency (i.e. rotating speed). High freq from VFD to Motor causes iron losses to increase dramatically. Best efficiency in any electric motor is on so called field weakening point which is usually is the sweet spot on efficiency.. over it and it is not best, under it same thing.

    On FWP the motor voltage is full voltage so you get best power i.e. full voltage and current.

    Reply
  2. This was so great 🙂 A BeeEmmVee in its natural habitat. And all those fossils so slow to accelerate. If BMW can actually make a profit on each sold, they have a product that can compete with Tesla. And apparently ample Ionity chargers between Northern Germany and Oslo. Great memories of the Autobahn. Will be back over there in February 🙂

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  3. Cool video again Björn! Didn't know you can do Finnish! 😄 By the way – "moi moi" is also used around Flensburg (an upper / northern Germany thing I guess) – confuses me every time as a Finn when shopping in Flensburg and they greet you like this 🤣 Very interesting what you mentioned about the battery heat on higher consumption – makes sense… What I've learned also from my Autobahn driving is this exponential consumption – and the consumption really increases dramatically yes… Some kind of a sweetspot seems to be 110 km/h or so… (does this depend on a car? maybe so…)

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  4. The fact that high speed has a much bigger impact on energy-consumption of EV’s, will never change in the future, even with new batteries.
    The reason is simple.
    Drag increases with the square of velocity. If speed doubles, air-drag shows a fourfold increase.
    An EV transforms 80% of energy in motion and drag has therefore a big impact on consumption at high speeds.
    An ICE car transforms only 20% of energy in motion. The rest is lost as heat.
    Even at higher speeds, heat loss remains the leading cause of energy consumption in the ICE car, leading to a much smaller impact of drag.

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  5. Hi Bjørn, a vietnamese car factory with the name Vinfast , Chinese parts asemmbly in Vietnam will ofter you money to review the car name VF8, this is a copy of copy shit, will you do that? only for money??

    Reply
  6. 12:25 surely ICE engines are more efficient at high “load/revs” but they will also be much more thirsty at 200km/h than if driving at 120km/h, so you would probably get half the range of a petrol BMW 4 series too…

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  7. Really nice video – as usual! Could you test the upcoming i4 m40 awd (at some point in 2023, when it is available?). I would be really interested in its range and consumption compared to the LR model 3! 😇

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  8. We can understand the fear of German Industry about EVs. High performance vehicles, with top price and profits, are now in risk. EV's and their limitations on the singularity of German autobahns, is near to end speeding as sale argument.

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  9. Thank you for the cool test. As you see, many Germans drive with 140 –
    170 km/h. And as we see and know, EVs lose range so much faster than combustion engines, even with a moderate speed of 140-150 km/h (A nice traveling speed imao). That is why Germans might face more difficulties adapting EVs.
    Will we ever see cars around 40-50k-ish, which manage 400km with a full charge at 130 km/h average?

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  10. For sure not all is great with this car but for me personally it‘s still the best EV on the market today. Even the efficiency in a Tesla is better. But I made many long trips with the i4 M50 and it was always more efficient then i thought. Only when it rains very heavily I made the experience that the range drops pretty much. In total a great video with a great car Bjørn

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  11. Fossils can easily do 250km/h without any issues. You can accelerate faster with an ev for a few seconds but you can’t sustain it as you loose the boost and drain your battery.

    Who says BMW’s are generally faster than AUDI’s? It doesn’t work like that.

    BRO, almost every Golf R, AUDI , Mercedes , BMW can easily do 250km/h.

    Every 18yr old can do that.

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  12. Hi, and thanks for your effort! Again, a very enjoyable video! Let me comment on “the Germans“. They don‘t exist. You‘re in central Europe where a three lane Autobahn is for everyone. There is no rule for minimum speeds for the three lanes. As to the Bockwurst: It‘s not exactly a German speciality, but more or less cheap fastfood. The “Jügerschnitzel“ is a German delicatesse from the last century. A good Schnitzel is not pork drowning in a prefab sauce, but a “Wiener Schnitzel“ (veal, not pork!) with a slice of lemon and excellent potato salad.

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  13. A pretty frustrating drive.
    Overheating, very low range, etc.
    When I used to cross Germany in the 80s and 90s, going at 250/260 km/h, generally in a Porsche 928, or a Mercedes AMG, I would average 400km between stops for fuel.
    And I never had to ease off the throttle because of overheating.

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  14. I think the power limit is the inverter heating up. The power limit goes away too quickly for the battery to change temperature enough to effect output power. A liquid cooled inverter would be able to change temperature quickly since there is very little thermal mass.

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  15. Drag or air resistance ( a force in Newtons N) increases with the square of speed but energy ( Joules or Nm) is Force x distance , thus energy required to overcome this increases with the cube of the speed. Hence in terms of pure air resistance, travelling at 200 km/ hr vs 100 km/hr consumes 8 times the energy. In practice the overall effect is less than this because road resistance also contributes but this only increase directly with speed. Evs are heavily impacted by average speeds because of their limited range.

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  16. Haha in Ireland you'll have everyone in the middle lane of a motorway and in the fast lane People will drive at 60 Km/hr and refuse to move to the middle or left lane which is the slow lane here driving on the left. In the middle lane People like to drive at 60 to browse the internet on their phones.

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  17. Nice video! I'm from Hamburg, this isn't the best area for fast runs because it is part of our commuter belt. I could show you better places, do you need someone to drive that EQS for you? 😉
    Been driving fast for 25 years now, first with 90 to 115 hp Audis at 160-185 km/h Vmax, then 252 with a 1999 A8. Stopped it a few years ago, lane discipline is just too bad nowadays, I don't need glowing front brakes. Also nicely visible in your video, the right lane is often completely empty.

    I have to say BEV's range at these speeds is pretty abysmal, but that was to be expected – wind drag at 250 km/h is more than tripled compared to 140. Combustion engines mask this with their inefficiency at low load.
    225 km/h top speed is also not very high. That's about the same as a standard late 2000s C-Klasse I drove a few times. Things get interesting at 240+ where the (fixed) suspension of my Audi starts to struggle and wobble at times.
    About the tires, they must have a safety margin to the vehicle's vmax here. The margin's formula is 1% of the top speed + 6,5 km/h.
    And about your pronunciation of Neumünster, good enough, but you said "u" instead of "ü" and the emphasis must be on the second syllable..

    The i4 seems nice, but this video has shown me I will definitely have to keep the Audi for the time being. Even moderate speeds of 180-220 km/h are a big weak spot of BEVs.

    Reply

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