BMW M5 Forum

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      Yesterday, 10:43 AM   #45
brianeck
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Originally Posted by cfm56d7b View Post
Echoing the same and raising the bar: if you could lease this car for $199 per month (including tax), would the experience overshadow any perceived shortcomings?
I'd drive an Xm for $199 a month too but it doesn't make it any less of an abomination. I'd probably drive any 120k+ car on the planet for $199, hands down.

The same can be said for a purchase too - if this was 1/6th of its purchase price ~~$30k, would I buy it? Sure! I'd slap a wide load sticker on her and call ahead to make sure I'm below the maximum weight for major bridges quite happily.
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      Yesterday, 12:44 PM   #46
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Originally Posted by IMS-340C View Post
No guys the reason BMW limiting G90's power is not Gearbox torque limit.

You can easily increase HP significantly without increasing torque.
That is not necessarily true. Horsepower is torque multiplied by rpm’s divided by a constant. At the same engine RPM it is mathematically impossible to increase power without increasing torque. If torque stays flat and RPM’s increase then horsepower increases.

Transmissions have both a torque limit and a horsepower limit. For example the transmission in the M5 has a max torque of 1,000 nm (737 Ft lbs). If it made this much torque at 10,000 RPM’s (extreme example) then that would be about 1,400 horsepower. The transmission cannot handle this amount of power.

I don’t know if we are currently at the power limits of the M5’s transmission, but I bet we aren’t far.

As RPM’s, and therefore horsepower, increase so does heat. A transmission can only dissipate so much heat which is why they have power limits on them. The Panamera Turbo S has 771hp using likely the same transmission. I bet that is the power limit (about 575 KW)
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      Yesterday, 01:10 PM   #47
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Of course you can't increase HP without increasing Torque or RPM.

What I mean is increasing HP without increasing PEAK Torque and RPM.

If you look at the dyno below of a stock G90 M5 as an example, increasing WTorque @7000 RPM from 500 lbft to 600 lbft (way below the 700 lbft peak Torque and way below any TCU Torque limit) will increase WHP from 666 to 800.

As for heat I don't think it's an issue, we've been tuning M5s to 800 HP easily without any heat issues.

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Originally Posted by Crazy1323 View Post
That is not necessarily true. Horsepower is torque multiplied by rpm’s divided by a constant. At the same engine RPM it is mathematically impossible to increase power without increasing torque. If torque stays flat and RPM’s increase then horsepower increases.

Transmissions have both a torque limit and a horsepower limit. For example the transmission in the M5 has a max torque of 1,000 nm (737 Ft lbs). If it made this much torque at 10,000 RPM’s (extreme example) then that would be about 1,400 horsepower. The transmission cannot handle this amount of power.

I don’t know if we are currently at the power limits of the M5’s transmission, but I bet we aren’t far.

As RPM’s, and therefore horsepower, increase so does heat. A transmission can only dissipate so much heat which is why they have power limits on them. The Panamera Turbo S has 771hp using likely the same transmission. I bet that is the power limit (about 575 KW)
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Last edited by IMS-340C; Yesterday at 01:22 PM..
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      Yesterday, 02:34 PM   #48
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Quote:
Originally Posted by callmebigpapa View Post
Absolutely beautiful machine and gets undeserved hate for its weight
Personally, I think the hate is justified since it’s the very first M5 generation ever to go backwards from a power to weight ratio valuation.

I like the exterior looks, but lament the downgrade in interior quality. However, this is not exclusive to this car, but a trend with new BMWs.
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      Yesterday, 03:13 PM   #49
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Quote:
Originally Posted by WWM3 View Post
Personally, I think the hate is justified since it’s the very first M5 generation ever to go backwards from a power to weight ratio valuation.

I like the exterior looks, but lament the downgrade in interior quality. However, this is not exclusive to this car, but a trend with new BMWs.
I am inclined to agree with the interior, I don’t like the direction it’s going in. Not just BMW but most brands. The early G series and most of the f series has been the perfect interior to me. Something like the pre lci g05 x5 that’s possibly peak bmw interior to me.
As far as the power to weight of the m5 that’s a valid criticism however I’m able to look past it (I will also never own a g90 m5)
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      Yesterday, 03:22 PM   #50
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Yeah this is the first time an M5 is not faster than the previous model.

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Originally Posted by WWM3 View Post
Personally, I think the hate is justified since it’s the Ansaugluft-Temperaturvery first M5 generation ever to go backwards from a power to weight ratio valuation.

I like the exterior looks, but lament the downgrade in interior quality. However, this is not exclusive to this car, but a trend with new BMWs.
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      Yesterday, 03:23 PM   #51
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To me M8 competition is peak BMW interior design.

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Originally Posted by callmebigpapa View Post
I am inclined to agree with the interior, I don’t like the direction it’s going in. Not just BMW but most brands. The early G series and most of the f series has been the perfect interior to me. Something like the pre lci g05 x5 that’s possibly peak bmw interior to me.
As far as the power to weight of the m5 that’s a valid criticism however I’m able to look past it (I will also never own a g90 m5)
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      Yesterday, 03:29 PM   #52
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Originally Posted by IMS-340C View Post
To me M8 competition is peak BMW interior design.
I can see it, I’m currently obsessing over SUVs so I am carrying a strong bias. The m8 interior is fantastic
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      Yesterday, 03:44 PM   #53
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Awesome in color
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      Yesterday, 07:43 PM   #54
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Quote:
Originally Posted by IMS-340C View Post
No guys the reason BMW limiting G90's power is not Gearbox torque limit.

You can easily increase HP significantly without increasing torque.
Please enlighten us as to the real reason since you’re so confident it’s not the gearbox.
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      Yesterday, 07:49 PM   #55
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Quote:
Originally Posted by WWM3 View Post
Personally, I think the hate is justified since it’s the very first M5 generation ever to go backwards from a power to weight ratio valuation.

I like the exterior looks, but lament the downgrade in interior quality. However, this is not exclusive to this car, but a trend with new BMWs.
After sitting in/driving the M5 I was really underwhelmed by the interior quality. Mostly the leather on the seats. It felt lower grade than the merino leather in the 550e I drove just before it. The dash is what it is…don’t love it but have been in several G60’s now since 2023 launch so it’s not unfamiliar.
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      Today, 02:34 AM   #56
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Quote:
Originally Posted by tsbrown View Post
Please enlighten us as to the real reason since you’re so confident it’s not the gearbox.
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      Today, 07:35 AM   #57
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Originally Posted by M_Torx View Post
maybe everyone just looking at it wrong it's a RR u can drift
Well said
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