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BMW 5-Series (G30) Forum 2017+ BMW 5 Series (G30) General Discussions purchase advice please: G30 vs G12

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      03-22-2025, 05:05 AM   #89
Knifeedge2k1
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Quote:
Originally Posted by G30M View Post
people do realise that weight distribution is a myth.
sure you can build a car exactly 50:50.

the moment you accelerate the car, depending on how hard you gas it, it's going to become lighter in front and heavier in the rear. which is why the american classic FR V8s will smoke the tires all the time.

in corners it's even more complex. pressing the brake or lifting off the throttle will change the weight distribution not only front to back but also side to side. that's how Max Verstappen gets his cars turned. he uses the steering wheel less than he uses his feet to turn his cars.

the moment you stomp on the brakes, it's going to move the weight to the front. it is this action that lightens the rear a lot, to the point where even FF cars will produce oversteer if you stomp on the brakes in corners.

according to Porsche, the ideal weight distribution is 40:60 for racing. for drifting, it's anywhere between 60:40 to 40:60. FR can drift. RR can drift. even FF can drift.
That's not really being fair

Weight distribution does have a huge effect but it can be somewhat masked by tuning. If we're talking about just driving enjoyment, the masking can do a very good job but if we're talking about actual performance as in split times then you can't break the laws of physics.

If just driving for fun honestly no one cares whether your cornering speeds are like a couple miles per hour slower or faster. you're not going to notice. But you WILL notice understeer/oversteer so you can just throw tire are the problem to resolve the balance even if it a particular platform has a lower overall threshold.

Case in point is the 911, no one in their right mind would hang the engine out over the ass like that but careful tuning makes it feel awesome for the most part. Porsche know there's a limit to this which is also why you never see the cayman/boxster get all the goodies the 911 gets. The two chassis are so fundamentally similar they share a LOT of parts and even more compatability wise (even the parts that are different are often interchangeable). If you give the boxster/cayman not just the GT3 engine but also the double wishbone front suspension as well as all the shock absorber goodies and aero it would destroy the GT3RS but you can't do that because product heirarchy
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