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Why was the M5 so much heavier than a 535i?

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    Why was the M5 so much heavier than a 535i?

    I dont have concrete numbers but Ive seen it vary from 300-600# which is absolutely crazy IMO

    Anyone know why ?
    Simon
    Current Car:
    -2003 Mini Cooper
    -1968 Datsun Roadster 2000
    Previous Car Count : 23 ... and climbing...

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    #2
    s38 heads are gigantic, bigger front brakes, bigger sways, thick leather all over the interior, sound deadening everywhere. a bunch of suspension stuff was thicker too i think

    internet seems to think top non-M E28 weight was around 3100lbs and 3300 for the M5, FWIW.
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      #3
      Originally posted by kronus View Post
      s38 heads are gigantic, bigger front brakes, bigger sways, thick leather all over the interior, sound deadening everywhere. a bunch of suspension stuff was thicker too i think

      internet seems to think top non-M E28 weight was around 3100lbs and 3300 for the M5, FWIW.
      200# is reasonable I guess, especially when you factor all of those things...
      Simon
      Current Car:
      -2003 Mini Cooper
      -1968 Datsun Roadster 2000
      Previous Car Count : 23 ... and climbing...

      Make R3V Great Again -2020

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        #4
        not sure about what year exactly the 535's got power seats, but the early 83-84 533i had manual seats among other things that made them even lighter than the 535's. I believe they're the lightest E28 with a big 6 motor
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          #5
          Originally posted by richardb View Post
          not sure about what year exactly the 535's got power seats, but the early 83-84 533i had manual seats among other things that made them even lighter than the 535's. I believe they're the lightest E28 with a big 6 motor
          It was in late 85 that they got the power seats.



          Andy

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            #6
            I'm getting 3,230 pounds for the 1985 535i. I suspect that the 3,100 spec is for the eta M20 car. What about the Euro 518i. Hard to believe 2,500 lbs.
            https://www.automobile-catalog.com/c.../bmw_518i.html

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              #7
              My E34 owner's manual said ~3600 for the 535i and ~3800 for the M5, IIRC. The twin cam head, heavier transmission, 17s vice 15s, bigger brakes... it all adds up.

              Weight reduction is hard because all weights are positive numbers.

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                #8
                In addition to the fact that the M5 has more/heavier stuff, that extra weight helps keep the tires on the ground during WOT acceleration and also probably keeps the car more stable when driven at really high speeds (100+ MPH), esp if its driven like that during a very windy day.

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