Vert vs. sedan vs. coupe curb weight?

I was wondering, and I'm sure I could find it if I looked long enough, but whats the difference in curb weight between the three body styles? Preferably in the 2005 year range (in ZHP form?) as it is the closest to mine for comparison...

Thanks!

vert and sedan difference is 341lbs.

coupes and sedans are listed the same in the manual im pretty sure. not sure which model i compared though. probably not enough difference to matter.

Go to bmwusa, you should be able to download the owners manual/brochure it says it in there

Originally Posted by jeffro3000

vert and sedan difference is 341lbs.

coupes and sedans are listed the same in the manual im pretty sure. not sure which model i compared though. probably not enough difference to matter.

Thanks!
Sooooo, how much of a difference does 341 make in real life speed? A lot? Would my ZHP vert = non-ZHP sedan?
(just curious)

Originally Posted by radarcontact

Thanks!
Sooooo, how much of a difference does 341 make in real life speed? A lot? Would my ZHP vert = non-ZHP sedan?
(just curious)

In a straight line, it'd probably even (weight is a huge factor in straight line performance though but since the ZHP has a shorter diff and a more usable powerband thanks to the cams+6800 redline that makes up for a lot of lag), but in the corners yes the sedan would come out on top due to the lower curb weight. Think about it as the difference between your car with 1 person in it vs your car with three people in it.

Originally Posted by Acarder

In a straight line, it'd probably even (weight is a huge factor in straight line performance though but since the ZHP has a shorter diff and a more usable powerband thanks to the cams+6800 redline that makes up for a lot of lag), but in the corners yes the sedan would come out on top. The sedan is the most rigid bodyshell, a sedan w/o folding seats is almost twice as rigid as a coupe, so take a guess at how less rigid a 'vert is than a coupe. Think about it as the difference between your car with 1 person in it vs your car with three people in it.

I have read it is more rigid, but TWICE as rigid? That seems pretty far fetched, do you have a source?

Also, rigidity does not necessarily equate directly to handling. There are so many other factors that come into play. The weight difference will be far more detrimental to your handling and straightline performance than chassis rigidity will, imo.

Originally Posted by Acarder

In a straight line, it'd probably even (weight is a huge factor in straight line performance though but since the ZHP has a shorter diff and a more usable powerband thanks to the cams+6800 redline that makes up for a lot of lag), but in the corners yes the sedan would come out on top. The sedan is the most rigid bodyshell, a sedan w/o folding seats is almost twice as rigid as a coupe, so take a guess at how less rigid a 'vert is than a coupe. Think about it as the difference between your car with 1 person in it vs your car with three people in it.

OMG here we go again with the sedan rigidity sh!t

Originally Posted by Acarder

In a straight line, it'd probably even (weight is a huge factor in straight line performance though but since the ZHP has a shorter diff and a more usable powerband thanks to the cams+6800 redline that makes up for a lot of lag), but in the corners yes the sedan would come out on top. The sedan is the most rigid bodyshell, a sedan w/o folding seats is almost twice as rigid as a coupe, so take a guess at how less rigid a 'vert is than a coupe. Think about it as the difference between your car with 1 person in it vs your car with three people in it.

Way off saying it's almost 2x as rigid. Let's not start these rumors.
BMW E46 Sedan (w/o folding seats) 18,000 Nm/deg
BMW E46 Coupe (w/folding seats) 12,500 Nm/deg

And actually the WAGON has the most rigid body shell comapring them with same folding seats.
BMW E46 Wagon (w/folding seats) 14,000 Nm/deg
BMW E46 Sedan (w/folding seats) 13,000 Nm/deg
BMW E46 Coupe (w/folding seats) 12,500 Nm/deg
BMW E46 Convertible ------------10,500 Nm/deg

Let us not forget Convertibles have a much lower center of gravity and weight not at the top with windows down and top stowed. But yes, weight loss is like gainning Hp. Hp to Weight is important.

Originally Posted by skipole

I have read it is more rigid, but TWICE as rigid? That seems pretty far fetched, do you have a source?

Also, rigidity does not necessarily equate directly to handling. There are so many other factors that come into play. The weight difference will be far more detrimental to your handling and straightline performance than chassis rigidity will, imo.

Rumor fixed and ended.
True, rigidity on a street car hardly equates directly to handling outcome. Tires alone can change the outcome of a slalom test even with a car with a rollcage.

Originally Posted by skipole

I have read it is more rigid, but TWICE as rigid? That seems pretty far fetched, do you have a source?

Also, rigidity does not necessarily equate directly to handling. There are so many other factors that come into play. The weight difference will be far more detrimental to your handling and straightline performance than chassis rigidity will, imo.

It doesn't necessarily when you have a closed body shell, but when you have an open one its more detrimental to handling.

Originally Posted by secono330ci

OMG here we go again with the sedan rigidity sh!t

No its not this sh!t, this thread isn't about your precious coupe, i'm talking about convertibles , how about you give him some information or go do something else

Originally Posted by Alex323Ci

Way off saying it's almost 2x as rigid. Let's not start these rumors.
BMW E46 Sedan (w/o folding seats) 18,000 Nm/deg
BMW E46 Coupe (w/folding seats) 12,500 Nm/deg

And actually the WAGON has the most rigid body shell comapring them with same folding seats.
BMW E46 Wagon (w/folding seats) 14,000 Nm/deg
BMW E46 Sedan (w/folding seats) 13,000 Nm/deg
BMW E46 Coupe (w/folding seats) 12,500 Nm/deg
BMW E46 Convertible ------------10,500 Nm/deg

Let us not forget Convertibles have a much lower center of gravity and weight not at the top with windows down and top stowed. But yes, weight loss is like gainning Hp. Hp to Weight is important.

Thats not way off, more like a third then. I wasn't going for exact figures anyway, sorry about that children Once again though, I wasn't trying to start stuff between sedans and coupes(that seems to be all anyone cares about though), this is about convertibles. I believe the figures as well, but where are you getting them from?

Originally Posted by Acarder

..The sedan is the most rigid bodyshell, a sedan w/o folding seats is almost twice as rigid as a coupe, so take a guess at how less rigid a 'vert is than a coupe..

Originally Posted by Acarder

No its not this sh!t, i'm not talking about your precious coupe, i'm talking about convertibles

Thats not way off, more like a third then. Sorry about that children Once again though, I wasn't trying to start stuff between sedans and coupes, this is about convertibles.

Nah, you have good info you gave the OP, but not absolute in the way it reads.
Btw you did post, "twice as much as Coupe". Then say compare that to the convertible. So your info wasn't really given Only comparing the sedan to the convertible

Originally Posted by Alex323Ci

Nah, you have good info you gave the OP, but not absolute in the way it reads.
Btw you did post, "twice as much as Coupe". Then say compare that to the convertible. So your info wasn't really given Only comparing the sedan to the convertible

I noticed that oh well, im just hassling him really.

To OP, sorry I got in your thread and don't know the answer about exact curb weights. Convertibles are always the heavier of the three with like options. Cabrios also get a little better ratio for gearing of their differentials to make up for the weight, but it only helps a little.

You can find the 2005 coupe weights in here: http://www.bmwusa.com/pdf_25b3f8bc-8...142e572b2.arox
2005 convertible weights in here: http://www.bmwusa.com/pdf_a403d480-5...89d3cf34c.arox
and 2005 sedan weights in here: http://www.bmwusa.com/pdf_d29a3525-6...7cbe283b9.arox

Originally Posted by Acarder

Thats not way off, more like a third then. I wasn't going for exact figures anyway, sorry about that children

If HR were to ring up and tell you "we're sorry, we've accidentally subtracted 50% of your salary in taxes instead of 30%", you'd say that's way off

Originally Posted by Acarder

...how about you give him some information or go do something else...
...I wasn't going for exact figures anyway

It's not nice giving someone false info

Yeah! It is not good to give a false info because people ask for help when they have faith on anyone. And no one should break that.