Quote:
Originally Posted by natmad
Or BMW’s conclusion...
The engine compartment contains the most striking component: the CFRP high-precision strut brace from the BMW M3/M4. This one-piece brace made from extremely light, yet high- strength, carbon fiber weighs in at just 3.3 lbs. Together with the bulkhead strut from the M4, it significantly increases front section rigidity and improves steering behavior and precision.
The high-performance chassis utilizes the lightweight aluminum intensive front and rear axles from the BMW M3/M4. In order to ensure extremely precise wheel location, tight tolerance ball joints are used to transmit transverse forces. The control arms and wheel carriers of the new five-link rear axle are made from forged aluminum. A racing-derived rigid connection, dispensing with rubber bushings, is used to fix the lightweight steel grid-type rear axle sub frame to the body. This improves wheel location and tracking stability.
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BMW's conclusion? More like BMW marketing.
The first paragraph is what has already been stated. The second paragraph is the same thing they said about the OG M2. Literally a copy/paste.