Yes, exactly.
Plus: the fact that it says Porsche in front of a model number (550), doesn't neccessarily mean it has better suspension!
Another nice example: the Mc Pherson suspension that VW outfitted the 1302 models with in 1970 (!!): it took Porsche untill 1990 (that is 20 years later!!) before their aircooled rearmounted boxerengine model got the Mc pherson coil springs up front...
And I won't even start about the 924, 944 and 968 models that all still used basically the VW IRS suspension
and those models were all street cars, not drag racers
Swing Axle has two great points for dragracing function wise: lighter and it renders less hp-loss.