because that would be bad for sales. They cant have a $60k “pony car” making the same power as a $120k ZR1.
its like the whole Camaro vs C5 thing back when they were on the lots. The C5 was rated at 350hp and the camaro’s 310hp but yet the Camaro’s were putting down more power on the dyno’s because of the SRA over the IRS. Its all about the level of the car and sales.