As the souped-up muscle cars, restored classics and lowriders cruise through the old Rydell Chevrolet lot on Van Nuys Boulevard, Reid Stolz takes stock of a scene that was familiar to anyone growing up in the San Fernando Valley a generation ago.

"Remember when we were young and the cops were old?" said Stolz, 51, watching an LAPD patrol car glide by. "Now the cops are young and we're old."

After a 28-year break, Stolz and other car lovers have brought cruising back to "The Boulevard," though the drivers are now more likely to be middle-aged guys with graying hair and grandkids, driven by nostalgia rather than teenage vanity.....