A used-car dealership operating from Suite 23 of the multi-tenant 4694 Voltaire complex, Modern Auto Sales runs a tightly-curated rotating inventory weighted toward European compact crossovers and late-model sedans like the Audi Q3 — pulled from auctions and individual trades rather than wholesale fleet liquidation. Pre-sale smog certification — required by California for title transfer on most 1976-or-newer gasoline vehicles — gets handled in the same building at O B Smog Test Only in Suite B, an unusual co-tenancy that compresses the inspection-to-paperwork loop into a single address. Inventory syndicates to CarGurus and similar aggregators, with transactions structured around in-house financing referrals rather than a captive lender desk. European compact crossovers carry more involved diagnostic surfaces than domestic equivalents — control modules, electronic suspension, transmission mechatronics — so buyers serious about a specific listing routinely schedule an independent pre-purchase inspection at Sunset Cliffs Automotive before deposit, slotting the diagnostic visit into the appointment-only buyer flow. Vehicle photos and condition reports for each listing reflect the actual unit on the lot rather than stock manufacturer images, a transparency choice that matches the appointment-only buyer flow the dealership encourages over walk-in browsing. The most involved transactions are trades on European luxury units with active manufacturer warranties that need transfer-of-coverage paperwork filed alongside the standard California REG 262 bill of sale.