I'm afraid thats an old tale. Modern computerised assembly lines have made car design rather equal. Even Citroen, who have been blamed for the odd (but dynamical right) positioning of the front brake discs away from the wheel have none oddities except from the unique suspension used on the top range.
I know, Peugeots are a nightmare to work on...All French cars are....with Citroën as a champion in this category....
Since the introduction of the Peugeot 205 have the Peugeot/Citroen corporation though used a rear suspension unit with torque bars and a seperate small schock absorber, thus avoiding the towers for the schocks protruding up in the trunk.
In the meantime have many cars shrunk causing the engine compartment rather filled and inaccessible, hence being a nightmare to work on :-o