Hills, fog, and the SF wear pattern
SF wears cars unevenly. The grades on Lombard, Filbert, the Castro hills, Twin Peaks — they punish clutches, transmissions, and brake pads at rates you don't see in flatter cities. Manual-transmission cars in SF burn through clutches in 60-80k miles routinely. Brake-pad replacement at every interval. Add the constant fog and salt air on the western half (Sunset, Richmond, Outer Mission) and the chassis ages faster than the powertrain.
What this means for our pricing: SF cars often pay near or above national medians despite low miles, because the cat is intact and the engine has plenty of life left. The discount goes against body components — rust on rocker panels and fender liners is common on west-side SF cars by year 8. Drivetrain side stays normal.
California cat law applies, with a Bay Area twist
California's catalytic-converter sale rules are the strictest in the country (paperwork tying any cat sale to a specific vehicle, OEM core charges honored, no standalone sales without documentation). That applies in SF the same as in LA. The Bay Area saw its own cat-theft surge from 2021-2023, with Priuses and Tundras hit hardest in SoMa, Bayview, and parts of Oakland.
Practically: the cat is priced into our offer for the whole car. Cars at pickup with the cat already cut land $400-$700 below the equivalent intact vehicle. Hybrids — common in SF — pay above the national average because the cat is worth $700-$1,200 by itself.