Wow - I am coming into this discussion late, but the uninformed anti-Corvette rhetoric on this board always amuses me. It's as bad as the politics threads...
Eric...you can hardly compare a 4x4 offroad multileaf spring with the highly-tuned single transverse fiberglass leaf springs in the Corvette. They are lightweight, they work, and the handling figures speak for themselves. The September 2004 issue of Road and Track posted 0.96g for the new non-Z06 C6. The September 2004 of Motor Trend posted 0.95g. That is nothing to sneeze at. Just wait until the C6 Z06 comes on the market. By the way, according to the same issue of Motor Trend, a 700-725 hp version of a lightweight (sub-3000 lb) C6 that is running a 7.0 liter version of the small-block is currently under development. It's future as a production car is questionable however (thank the bean counters at GM).
By the way, here's a pic of the rear suspension of the C6: Hardly seems primitive, and it certainly isn't producing primitive numbers.
Here's a pic of the "primitive" front suspension: Must I remind everyone that the M3 uses a much less advanced McPherson strut design?