Z07 as a daily driver? Not so fast!
Had the privilege of meeting one to one with Alex MacDonald, Z06 Chassis Controls Performance Engineer. Alex noted that the final specifications for the Z06 components of suspension components are not finalized as of this time, that testing and chassis/suspension development continues.
He mentioned that the spring rates are much firmer for the Z07 then the other two stages, and that because the spring rates are significantly firmer, that the MSRC shocks must similarly be firmer to compensate. He added that the shocks are firmer in not just sport and track modes, as we heard previously, but also in the touring mode, i.e., even in the touring mode, you need stiffer shocks to modulate and control the stronger forces brought about by having stiffer Z07 Springs. He also confirmed that Jim Mero, Chief Z06 performance driver, continues to test/refine the car, including testing whether the Z07 will also have stiffer/larger sway bars -- which is actively being considered for that version at this time. As of today that decision is still under full consideration, neither adopted, nor rejected. Once Jim finalizes the sway bar decision, he will then determine whether or not the bushings for the sway bars will also be stiffer. Alex stated that there are at least six different sway bar bushings (with different degrees of firmness) that will be considered. Lastly, the MSRC will be calibrated on the Z07 version. (Of course, parallel development continues on the stage 1/2 version.)
Alex volunteered his personal experience driving a Z07 around Detroit, first emphasizing, as we all know, that the streets around the Detroit area are a challenge, sometimes pothole ridden. He and his wife went for a 20 mile Z07, "local ride" that ride changed their subsequent weekend plans, for they had planned to take the Z07 a couple of days later on a 120 mile weekend trip, but after the local 20 mile local trip, he exchanged it for a stage 1 Z06 for the 120 mile weekend ride.
Alex said that the Z07 is a phenomenal rack car! He used the exact phrase we previously heard from Chief C7 Designer, Kirk Bennion, that it is a "track enthusiasts" car.
Testing and development and refinement of the Z06 (all versions) continues, and further changes could occur, but none, in Alex's opinion, are going to change the essential nature of the Z07 version as one both designed for the track AND one he personally would not want to drive as a daily driver.