Review: 2023 BMW M4 CSL teases on the street, longs for a track

The 2023 BMW M4 CSL (Competition, Sport, Lightweight) is a sport coupe in search of a racetrack, but an hour on this mountain road outside of Palm Springs is my only option. The M4 CSL goes beyond the capability of the already bonkers M4 Competition with 240 pounds of weight savings, more power, and a spate of parts that seem more at home on a…