Quote:
Originally Posted by Jason
• M engineers are rumored to be striving to push the curb weight of the M3 and M4 to under 3300 lb (1500kg), which should shave a few tenths off 0-62 mph times. This is said to be accomplished with aluminum doors, roof, hood, trunk, carbon brake discs. • BIMMERPOST Note: Although we'd love for this to come true, we're skeptical of this claim however, as this would amount to over 400 pounds shaved off the current M3 sedan's curb weight. Furthermore, the roof would certainly have to be carbon fiber (not aluminum as claimed) and we've yet to spy carbon ceramic brakes in any of the M3 or M4 prototypes (full spy pics compilation). This much weight reduction will be difficult to achieve without extensive use of carbon fiber construction, which we have reported that the F80 M3 and F82 M4 will not be featuring.
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Fully agree with the Note. This much weight savings is unlikely simply because it would be too expensive.
"Striving" should technically be "have strived"!
The funny thing is that all of this is pretty well already decided. The weight of the production M4 is known quite precisely at this point and has been for some time. The goals, specification and engineering is all done. It just will be leaked to us slowly over time.