I've looked for so long to try and find a basic breakdown of the the body panel weights on these cars.
Does anyone know any of these weights or know where to find them short of taking them off and weighing them? Any of these would be helpful. I'm looking to see how much weight could be saved by fabbing some panels out of prepreg fiberglass or carbon material.

Hood, front/rear quarterpanels, doors, trunk lid, bumpers, and exhaust.

 

anyone know any of these?

 

This would be great information, espcially if it included more like the weight of all the removable parts that can be used to save weight. Like Battery, Exhaust, Spare, Softtop with motor. But we're not organized enough, or large enough to compile this type of info.

 

Spare tire is about 15 lbs.
Tools are 5lbs. (although I highly recommend keeping the towing eye)
Average battery for our car is 28 lbs.

What others have said...
stock exhaust minus headers weigh about 55 lbs.
Hood is 5 lbs. so not worth chaning other than for looks
full soft top+frame+motors = ~65 lbs (i refuse to lose that)
Seats weigh 32 lbs each (Prolene measured them on a scale)
Wheels weigh 17.5lbs and 18.6lbs for front and rear each.

All that being said. I love the sound of the stock exhaust as do most of my friends. Unless there is an aftermarket exhaust that sounds the same I'm leaving it alone.
I think quite a lot could be saved through the doors but I don't know for sure. I modified my Jeep Cherokee doors to be taken on and off and they are heavy!! Yet they feel like I'm shutting nothing compared to the S2000's doors. Lots of concern about side impacts of carbon doors but with a little design you can put a side impact beam in there.

 

I had 210 pounds taken out of the car before I went turbo - made a huge difference.

Spare is 25 pounds, tools are 10, trunk carpeting is 6. That's 41 pounds just in the trunk.

The hood is actually around 15 lbs, not 5.

You must be weighing these parts with a scale on the moon

 

Maybe the spares and tools weigh differently from year to year because I weighed mine on a scale. The other stuff I was just taking what others have said.

 

maybe exhaust system? my experience with the front fender is the stuff is ever so thinn, weight from material choice is not a factor. make the fast food nation goto SubWay, lose weight yourself.

serious, want the weights; call first but goto a honda dealer parts dept w/ scale and weigh them.

 

I would love to do that but have you ever been to a dealership that stocked any S2000 parts? They didn't order a part for me until I paid for it too.