Well then you're ignorant beyond debate on the merrits of the car... the only thing I remotely agree with is the interior materials used (not design/ergonomics) and that was vastly improved with the C6 platform.
A few facts about the platform -
1. Body work is SMC (sheet molding compound) other than the urethane bumpers. The car isn't "plastic" like a Saturn.
2. The LSX V8 is the most efficient V8 on the planet when you look at horsepower per volume... i.e. the overall size of the package. Overhead camshafts necessitate a mssive cylinder head and makes for a much bigger engine. Ever wonder why the LSX is swapped into everything? Because it fits and makes more power than any comprable engine.
3. Car doesn't have "leaf springs in the rear" as you put it, it has composite transverse monoleafs front and rear and they're nothing at all like the leaf spring on a pickup truck other than they share the word leaf. They actually lower the center of gravity of the car. The only advantage of a coil-over suspension is the ability to swap spring rates more easily at varying race tracks. Last I checked your average car guy, even HPDE guy doesn't change spring rates for varying track conditions.
But I see you adhere he common misunderstandings in the automotive world that DOHC > OHV and coil-springs > monoleafs
Oh... and the C5 Z06 ran a sub 8 minute time at the Nurburgring back in 2004 and the ZR1 is in 2nd place for a production car record... 2nd to the Viper ACR which also uses a,
gasp, archaic pushrod engine