How about comparing an 06 CTS-V to the 06 M5, since the E60 M5 didn’t change power/“handling” wise for its tenure. The 09 CTS-V came out with more power, different suspension and what not to compete against the E60 M5. Then BMW reigned supreme once the new M5 (F10) came out.
If you wanna argue at least be fair about it. That will earn you mate a smidgen of respect compared to what you have now.