" First, the 4-series looks very good, thank God
About the M4, if the F32 335i is lighter than the e92 335i by 100lbs, then I think that not only will it be much lighter than the e92 M3, but it will be able to match the e46 M3 weight like the rumors were circulating. Think about it, only the S65 V8 engine weights 150lbs more than the N54. So substract 150lbs from the engine (ok, add back 20lbs for 2 air-to-water intercoolers), 100lbs from F32 standard construction weight reduction, and some 50-80lbs from M3-specific weight reduction: carbon fiber roof, maybe carbon fiber trunk and hood, some aluminium suspension bits instead of steel, etc. Easily 250-300lbs less than the e92 M3. "