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      10-13-2009, 04:09 PM   #67
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Stock 135i= 3373lbs
BBS FI wheels: -40lbs (-10lbs x 4)
Non RFTs: -32lbs (-8lbs x 4)
M3 suspension bits: -10lbs
CF Roof: -20lbs
CF Hood: -10lbs
CF Trunk: -5lbs
Lightweight exhaust: -30lbs
Lightweight battery: -30lbs
Lightweight bucket seats: -50lbs
Overall: -227lbs, 3146lbs. Not bad if they do it...
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      10-13-2009, 04:12 PM   #68
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^
add a CF driveshaft and an single turbo I4 to get the weight down another 100lbs.
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      10-13-2009, 04:15 PM   #69
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Quote:
Originally Posted by GreenPlease View Post
Stock 135i= 3373lbs
BBS FI wheels: -40lbs (-10lbs x 4)
Non RFTs: -32lbs (-8lbs x 4)
M3 suspension bits: -10lbs
CF Roof: -20lbs
CF Hood: -10lbs
CF Trunk: -5lbs
Lightweight exhaust: -30lbs
Lightweight battery: -30lbs
Lightweight bucket seats: -50lbs
Overall: -227lbs, 3146lbs. Not bad if they do it...
Yes but the lack of a sunroof makes it 50lbs less for the CF roof, add in 30-50 lbs for lighter glass and subtract another 50lbs for insulation, sound deadening, and other extraneous items. It will be a substantial weight drop.

We have been told this project was initiated by Dr. Kay the new head of ///M.
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      10-13-2009, 04:16 PM   #70
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Quote:
Originally Posted by GreenPlease View Post
Stock 135i= 3373lbs
BBS FI wheels: -40lbs (-10lbs x 4)
Non RFTs: -32lbs (-8lbs x 4)
M3 suspension bits: -10lbs
CF Roof: -20lbs
CF Hood: -10lbs
CF Trunk: -5lbs
Lightweight exhaust: -30lbs
Lightweight battery: -30lbs
Lightweight bucket seats: -50lbs
Overall: -227lbs, 3146lbs. Not bad if they do it...
I like the way you look at things. The car needs to lose at least 200lbs.
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      10-13-2009, 04:26 PM   #71
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Quote:
Originally Posted by hector View Post
yeah, but more importantly, lighter.

I'll be shocked if they can take more than 150lbs out of it.
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      10-13-2009, 04:27 PM   #72
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Quote:
Originally Posted by hector View Post
yeah, but more importantly, lighter.
I wonder if it will have seats like the E46 CSL had and if it has a stereo or not. I hope it has both of those lol
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      10-13-2009, 04:29 PM   #73
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Looks to me like this would be the actual, BMW produced tii model. Remember that as per BMW's own comments, there is supposed to be a tii in the current 1-series that would feature a 4-cylinder turbo engine, measures to reduce weight, and special suspension, brakes, etc.

This looks like it to me.

Watch what this is, because the next 1-series and next 3-series are supposed to get tii models that have farther reaching changes than this current generation "modded" 1-series tii.
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      10-13-2009, 04:47 PM   #74
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Quote:
Originally Posted by Robert View Post
That made no sense to me as well. You need a flared arch to house thicker rubber and flared arch in the back means larger rear tires, which helps RWD. Four wheel drive typically does not stagger...
Whatever they're trying to do, it looks like they perhaps discovered the limitations to the 1 when it comes to different wheel and tire sizes and had to adjust accordingly.
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      10-13-2009, 04:56 PM   #75
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Ideas for Gearboxes?

If they follow a CSL type formula then i guess we'll be seeing DCT. I kind of miss the cool nudge of SMG when it banged into the next gear, but i might be a bit weird hahah
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      10-13-2009, 05:12 PM   #76
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Quote:
Originally Posted by mapezzul View Post
Yes but the lack of a sunroof makes it 50lbs less for the CF roof, add in 30-50 lbs for lighter glass and subtract another 50lbs for insulation, sound deadening, and other extraneous items. It will be a substantial weight drop.

We have been told this project was initiated by Dr. Kay the new head of ///M.

No way you're losing that much weight out of this car. 50lbs off the existing glass? Not a chance. The CF roof usually requires re-enforcement, so it's almost a wash, and the entire sunroof doesn't weight 50lbs.
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      10-13-2009, 05:20 PM   #77
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Quote:
Originally Posted by jeremyc74 View Post
No way you're losing that much weight out of this car. 50lbs off the existing glass? Not a chance. The CF roof usually requires re-enforcement, so it's almost a wash, and the entire sunroof doesn't weight 50lbs.
I was saying the sunroof clip and roof - 50 lbs. Glass is one of the heaviest items on the car outside of metal and if they are using what I think they are it will be close to that, the use of LEDs vs. Xenons saves 7lbs a corner. There is a lot of weight to be shaved these days. It is not a wash with the CF otherwise they wouldn't do it. The M3 saves 45 lbs compared to one with a steel roof and sunroof and that is using a wet resin, these new baked resins are stronger and lighter.

There is a lot being experimented with and tested- but the cost is what will be the deciding factor. Not many going to spend $50k on a 1er, so it is yet to be seen what will be green lighted.
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      10-13-2009, 05:22 PM   #78
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Quote:
Originally Posted by WonWunONE View Post
I wonder if it will have seats like the E46 CSL had and if it has a stereo or not. I hope it has both of those lol
they'll probably do some kinda lightweight seats, but the US never gets sweet stuff like that. damn you NTSB!
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      10-13-2009, 05:25 PM   #79
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I can only see slight differences: Huge flared fenders, exhaust tips (probably PP exhaust), wheels and tires. If it were to be an ///M I think we would see a slightly more modified cosmetic appearance, no?

Last edited by Jcrewsn; 10-13-2009 at 05:27 PM. Reason: more info
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      10-13-2009, 05:28 PM   #80
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Quote:
Originally Posted by Jcrewsn View Post
I can only see slight differences: Huge flared fenders, exhaust tips (probably PP exhaust), wheels and tires. If it were to be an ///M I think we would see a slightly more modified cosmetic appearance, no?

The body work is the last thing to be seen. There's not really any reason to have the car out in the public with it until they're just about ready for production.
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      10-13-2009, 05:34 PM   #81
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They need a more aggressive front end....
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      10-13-2009, 05:34 PM   #82
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Quote:
Originally Posted by Mark M View Post
My two cents....it is a test mule for an x-drive platform. The e90 sedan already wears the same N54 engine and is available in x-drive.

Look at the front fender gap on the spy pics.....it looks like it sits higher than a normal 135 supporting the notion of x-drive. If it were something like an ///M supersport you can bet it would be disguised much better than that.
I agree 100%
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      10-13-2009, 05:36 PM   #83
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I agree 100%

Why would you have flared fenders on an AWD vehicle?
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      10-13-2009, 05:41 PM   #84
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Quote:
Originally Posted by mapezzul View Post
I was saying the sunroof clip and roof - 50 lbs. Glass is one of the heaviest items on the car outside of metal and if they are using what I think they are it will be close to that, the use of LEDs vs. Xenons saves 7lbs a corner. There is a lot of weight to be shaved these days. It is not a wash with the CF otherwise they wouldn't do it. The M3 saves 45 lbs compared to one with a steel roof and sunroof and that is using a wet resin, these new baked resins are stronger and lighter.

There is a lot being experimented with and tested- but the cost is what will be the deciding factor. Not many going to spend $50k on a 1er, so it is yet to be seen what will be green lighted.
What's your source for the roof savings?
There's no evidence they save any weight at all with the roof. The M3 gains weight over the 335i.

3650lbs vs 3527lbs according to the website. There's just not that much weight to be taken out of the 135i, at least without stripping it down, and that's not going to happen because it will narrow the market too much. It's unlikely they'll go with smaller wheels, so the weight savings there will be minor. They can't reduce the number of airbags, and the stereo just doesn't weight that much to begin with.

Glass is one of the heaviest items on a car, but you can't very well get rid of it. GM thinned the glass for the Z06 and gained a whopping 7lbs. 50 isn't even remotely realistic. Same goes for the exhaust. You MIGHT save 10-15lbs going to TI, but the converters are still going to be there, as is the muffler.

As I said earlier, I'll be SHOCKED if they manage to drop 150lbs from this car.
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      10-13-2009, 05:43 PM   #85
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What strikes me as odd is that it looks like the wheels are a square set up, with lower offsets. It would be pretty bizarre to do an awd, unless they really up the power and I don't hear anyone saying 400 hp. Who knows. If they build it I will take a serious look at trading up. What would be really annoying is if we were to find that this was just someone doing some odd mods.
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      10-13-2009, 05:49 PM   #86
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I also think they should do something with the hood similar to the M3, like a bump and vents or something, just to liven it up. IMO
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      10-13-2009, 05:51 PM   #87
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They really need to get this thing under 3000 lbs to be successful. It would be a testament to their technology and mechanical skills. The only way to achieve this would be having a turbo 4-badger engine. Then to be successful, BMW needs to keep this around $40,000 or less since it is a 4-badger.

The M3 weights more than the 335i because it has a V8 versus a V6 in the 335i. The M3 is a phenomenal car.
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      10-13-2009, 05:57 PM   #88
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Quote:
Originally Posted by jeremyc74 View Post
What's your source for the roof savings?
There's no evidence they save any weight at all with the roof. The M3 gains weight over the 335i.
You can't be serious with this- and part of the reason I rarely post anymore. The ///M3 is a different vehicle from a 335, it is built more substantially than a 335i, in fact they are not even in the same league unless you want to go fast straight. Did you notice that the engine in the ///M3 is a V8, and that the ///M3 has a very substantial rear differential and larger wheels and brakes and a whole lot more? The cars share very little. I am not going to make this into a 335 vs ///M3 debate as it is not the point of this thread and not worth my time but that comment alone shows why some "enthusiasts" really should look a bit more into what they are trying to argue. It is like the BMW does not know turbo debate- BMW built some of the best turbos ever- from street to F1- look it up.

My source for the roof savings would be be the engineers at BMW ///M and materials do you want their names? It is between 11 and 20lbs less for a CF to a steel one (I have been given 2 numbers- early to late and not sure) and about 45 for one with a sunroof.
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