According to this post: https://www.bimmerfest.com/forums/sh...#/topics/52170 ...
“For the E46: Sedan (w/o folding seats): 18000Nm/deg of torsion Sedan (w/folding seats): 13000Nm Sport wagon (w/folding seats): 14000Nm Coupe (w/folding seats): 12500Nm Convertible: 10500Nm”
If true, the loss of torsional rigidity is actually 28%, which still seems major.
2004 BMW 330i ZHP (52k miles), Jet Black with black leather, MFactory LSD (3.38) with Z4 cover, 18"x8.5" ET38 APEX Arc-8's (Anthracite) with 245/40 Michelin PSS', Koni Sports with factory springs and front and rear reinforcement plates, Shark Injector, Corsa TSE3 cat-back exhaust, TMS under-driven pulleys (water & steering), CDV delete, TMS CF strut brace, K&N CAI, GAS DISA rebuild, TMS pedals, Wheelskins steering wheel cover, roller tray center console, black-out grilles, and WeatherTech mats