Quote:
Originally Posted by LSM
The new 4series will have 48v mild hybrid. I would not be surprised if the New M3/M4 came with that upgrade to the S58 engine and smooths out and instantly puts the power down power
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To my understanding, the purpose of 48-volt electrical systems is not to enhance hp of the drive system as a ("mild") hybrid as you say, but rather for additional power to run the car's ever more hungry electrical system (e.g., infotainment system, electronics and electric motors running more and more things).
Most cars run on a 12-volt system as cars use DC 12-volt batteries. But now automakers are either switching over to 48-volt systems, using 48-volt lithium-ion batteries, or adding them on top of the existing 12-volt system.