The volatility of design "con******t" betweeen the major brands often leads to a similiar likeness, for example the vy - ba dash, Im not saying its the same, but it is similiar. Don't forget teh vx was a "magnadoor".
If you want to see how far a likeness can be taken have a look at the Lexus Ls430 and the slightly older merc s class rear. apparently daimlerchrysler considered sueing lexus, but in teh end didnt bother, they tried to sue Hummer/Gm over the 7 vent front grill on the h2 hummer, but that fell thru as well.
Speaking of lexus, the new es300 looks a hell of a lot like the peugot 607.