Some justification for the weight numbers in the OP.
Audi R8 GT vs. standard R8 weight savings:
This was a big thrust toward weight reduction for this variant, more so than a big power or torque bump. They achieved:
-Seats: 69 lb
-Lightweight carpet: 17 lb
-Thinner windshield glass: 20 lb
-CF hood , bumpers and side "blades": 29 lb
-Battery: 21 lb
-Intake and sound insulation: 11 lb
-Carbon ceramic brakes: 20 lb
This already totals almost 190 lb, well above the upper limit of the number I've estimated for the M3 reductions. Of course I'm pretty sure the next gen M3 is not going to get CC brakes, but either way the numbers I have posted are totally realistic.
E92 M3 | Space Gray on Fox Red | M-DCT | CF Roof | RAC RG63 Wheels | Brembo 380mm BBK |
| Vorsteiner Ti Exhaust | Matte Black Grilles/Side Gills/Rear Emblem/Mirrors |
| Alekshop Back up Camera | GP Thunders | BMW Aluminum Pedals | Elite Angels |
| XPEL Full Front Wrap | Hardwired V1 | Interior Xenon Light Kit |