I think that the behavior of that multi link rear suspension you talk about is the same as swing axle, the 3d model only is higher poly with nice details, i dont think it behaves like real multilink, i also dont think positive camber it generates when rear hops during a bump in a corner is good for speed/grip, also negative camber caused by rear weight transfer is not very good for acceleration becauae of a smaller contact patch, i Never saw swing axle in a racing application, so mcpherson is better here because it has less flaws than swing axle which seems to be the type of suspension that the rear suspension is modeled after in SLRR. In a nutshell, i think rear suspension is badly modeled.
