2023 Audi S4 Premium Plus

Listed by a franchise dealer in St. Charles, IL · On lot for 91 days · VIN verifiable at NHTSA

This used 2023 Audi S4 Premium Plus is listed at $40,684 by fox valley volkswagen of st. charles in St. Charles, IL 60174. It has 42,418 miles on the odometer (dealer-reported, not independently verified by OAV). The exterior color is White. It features a 4WD drivetrain with a 3.0L V6 engine and Automatic transmission.

OAV's AI-powered Price-to-Market analysis rates this vehicle as Fair Price — priced at market value. Based on 16 comparable listings matched to this vehicle, the estimated market range is $36,413 to $46,743. These comparisons match year, make, and model and may currently span trims and configurations (trim-level matching is rolling out).

This vehicle has been on the lot for 91 days.

Analysis powered by OAV's patented inventory standardization technology (U.S. Patent No. 12,236,477).

Market context

This listing is part of OAV's broader St. Charles, IL sedans market analysis. OAV compares vehicles using local and regional price-to-market ranges, days-on-lot, comparable count, and demand signals where available.

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How this deal is rated

OAV compares this 2023 Audi S4 against similar vehicles currently available in the local and regional market — same make, model, and year range (currently across available trims and configurations; trim-level matching is rolling out), filtered for comparable mileage. Based on where this listing falls in that comparable set, it is rated:

• Great Deal — priced below the typical range for comparable vehicles.
• Fair Price — priced within the expected range for comparable vehicles.
• Overpriced — priced above the typical range for comparable vehicles.

Listings show OAV's PTM-derived deal quality and live market context. OAV-claimed dealers manage their listing profile and route buyer inquiries directly. Paid OAV partners surface additional verification signals.

How this listing is verified

This vehicle listing was aggregated from a franchise dealer in St. Charles, IL, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN WAUB4AF47PA061201 can be independently verified via the U.S. Department of Transportation's NHTSA VIN decoder, and safety recalls at NHTSA's recall database.

Vehicle attributes (year, make, model, trim, mileage, location) are standardized using OAV's patented methodology (U.S. Patent No. 12,236,477), which normalizes naming conventions and deduplicates cross-listed inventory across the dealership network. Listing data is processed daily; Price-to-Market analysis uses comparable vehicles within the same geographic market.

2023 Audi S4 Market in IL

Based on all 11 2021-2025 Audi S4 listings in the IL market, the average asking price is $43,011. This listing at $40,684 is $2,327 below the broader IL average (5% below the IL average). This is a wider, all-trim comparison across IL; OAV's price verdict above uses the closer comparable set. Comparable prices in IL range from $36,413 to $53,888. Similar vehicles spend an average of 63 days on dealer lots in this market.

Similar Audi S4 Listings in IL

8 similar listings shown (closest matches within ±2 model years) and ±30,000 miles (subject trim: Premium Plus — compare trims below)