z4m , whats the actual weight??

B

Beedub

Lifer
 Sutton Coldfield
Has anyone weighted their car recently???

im seeing so many different figures for the weight???

roadster 1410kg and coupe 1425kg is what i though it was??? but then i see some publications listing roadster at 1485 and the coupe over 1500???? surely that cant be right??

So just wondering if anyones actually weighted their car or seen the corner weight figures?
 
I'm not sure either but as I bought the Z in to work today and I have my corner weight scales here I will weight it later. :)
 
Carfolio have the roadster at 1485 and the coupe at 1495 kerb, I think that's standard weight plus 100kg AFAIK.
 
bmwaddict said:
Carfolio have the roadster at 1485 and the coupe at 1495 kerb, I think that's standard weight plus 100kg AFAIK.
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yeah i assumed that weight included driver??

DAVE, sort this out out for us buddy!!
 
Owner's manual says:
  • 1,453kg for the Roadster
  • 1,465kg for the Coupe
...but doesn't specify whether that's 'wet' or 'dry'.
 
I had mine weighed a while back with half a tank, no driver. Came out at 1385 iirc which surprised me tbh. I've managed to lose a bit more since then so I'd be interested to see what it is now.
 
TomK said:
I had mine weighed a while back with half a tank, no driver. Came out at 1385 iirc which surprised me tbh. I've managed to lose a bit more since then so I'd be interested to see what it is now.
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thats impressive!
 
Yes, I was expecting to be not a lot below 1450 at the time. BMW can we a bit odd with their quoted figures. For instance the e46m3 quoted weight by BMW includes 3/4 tank of fuel and driver, whilst when they quoted the weight for the CSL that was with no driver and half a tank or something, naughty imo.
 
Fishy Dave said:
I'm not sure either but as I bought the Z in to work today and I have my corner weight scales here I will weight it later. :)
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Awaiting results with interest. :)
 
This website http://www.rri.se has the curb weight of a 2006 Z4M Roadster down as 1467kg (full tank of fuel and all fluids but no driver), so about 1425kg-ish without the fuel. The S54B32 engine also made 94% of its quoted power and torque figures on their dyno which seems pretty good. Interesting website!
 
Sorry for the delay, it took a while , my fancy new jack is too high to go under the car :oops: and I was hungry when I got home. Anyway.....the results are, it needs to go on a post Christmas diet. :oops:

Weighed with full trim, inflation kit, a few cds and just over 3/4 of fuel.

My APs and rear ARB are lighter than standard but the exhaust valve adds quite a few kgs back.

The good news is the balance is excellent.

Without driver

51.1% front 48.9% rear
Corner weights are 50.1%
Total weight is 1483kg


With me in the drivers seat

50.23% front 49.77% rear
Corner weights are 50.5%
I weight 88kg, therefore also need to diet a bit :?
Total weight with me is 1571kg

20171215_180423.jpg

20171215_181843.jpg

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Corner weight displays weight in pounds due to being an older US model.
 
TomK said:
I had mine weighed a while back with half a tank, no driver. Came out at 1385 iirc which surprised me tbh. I've managed to lose a bit more since then so I'd be interested to see what it is now.
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Aha, that's my racers excuse sorted then. :P
 
I need to get mine on those scales, I almost don't believe what I was told before, though it was on tried and tested corner weight scales.
Something for the new year :)
 
You're welcome to use them mate, that's an open offer to anyone if they wish. :)

You've saved weight with your Supersprint, alloys, Carbon airbox, interior trim and especially the drivers seat so a figure beginning 13XX sounds possible. 8)
 
This is from when mine was weighed. It had a full fuel tank and 80kg ballast on the driver’s seat.
 

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BMWZ4MC said:
This is from when mine was weighed. It had a full fuel tank and 80kg ballast on the driver’s seat.
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That sounds good, what have you changed on your car to save weight?
 
mmm-five said:
Owner's manual says:
1,453kg for the Roadster
...but doesn't specify whether that's 'wet' or 'dry'.
Click to expand...

My handbook says the same too, based on that figure I am exactly 30 kg heavier with over 3/4 of a tank of fuel.

The UK sales brochure gives an unladen, EU weight of 1485, just 2kg more than my cars actual weight, however, the brochure says this includes a 90% full tank, 68kg for the driver and 7kg for luggage, but in standard (no options) trim. That doesn't sound 'unladen' to me but anyway.
If you minus 68kg and 7kg, the weight with 90% fuel should be 1410kg, why is mine 1483kg? The HiFi, Sat Nav/DVD, electric folding mirrors and pdc all adds a little to the weight, but not that much?
Rather than Flimper spec. mine appears to be Pie spec. :oops: :?
 
Fishy Dave said:
BMWZ4MC said:
This is from when mine was weighed. It had a full fuel tank and 80kg ballast on the driver’s seat.
Click to expand...

That sounds good, what have you changed on your car to save weight?
Click to expand...

Intake (but I doubt that reduced the weight), Remus back-boxes, H&R ARBs, KW Clubsports and CSLs are the only weighty items I’ve changed. I suspect the exhaust and wheels made the greatest difference.
 
Fishy Dave said:
My APs and rear ARB are lighter than standard but the exhaust valve adds quite a few kgs back.
Click to expand...

Have you put a smaller rear ARB on your car or is it a tubular ARB? My uprated ARB (solid bar) is definitely heavier than the OEM one.
 
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