950kg Vitz

950 kg body weight NCP10 TOYOTA Vitz 1300cc RS exerts ultimate physical performance after following maintenance:
Replacement of sparkling plugs, ATF into TOYOTA genuine T3, brake fluid to DOT#3, stabilizer link bushes, TOYOTA genuine Castle motor oil 5W30.
Ugly wheel alignment and axle constructive geometry were observed in Vitz at the beginning, moving frontal main bar in adequate position and sim insertion between rear wheel hub holding surfaces could enabled to establish the suspension matching finally. Because of torsion beam rear axle designing for the initial generation Vitz allows considerable value of error in the wheel alignment and axle constructive geometry.
To my surprise, displacement of inner race in compliance bushes in rear trialing arm hinge position were apparently observed that had be brought by ill product construction in the factory line. Newly introduced cracked compliance bushes in both front and rear arm hinge portions easily  cause displacement that must affect on wheel alignment discrepancy.
In another words, movable and movable bushes might compensate the errors and resultant discrepancies on automobile's alignment and geometry? This kind of the truth and the fact are not opened to the public, just a talk in research and development level only.