2021 Audi S4

Listed by an independent dealer in Waltham, MA · On lot for 189 days · VIN verifiable at NHTSA

This used 2021 Audi S4 Premium Plus is listed at $35,463 by eastside motoring in Waltham, MA 02451. It has 53,235 miles on the odometer. The exterior color is Black. 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 Unscored due to insufficient comparable data. Based on available similar vehicles in the Waltham market, the estimated market range is $35,463 to $35,463.

This vehicle has been on the lot for 189 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 Waltham, MA 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 2021 Audi S4 against similar vehicles currently available in the local and regional market — same make, model, and year range, 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 an independent dealer in Waltham, MA, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN WAUB4AF47MA020238 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 refreshed daily; Price-to-Market analysis uses comparable vehicles within the same geographic market.

2021 Audi S4 Market in MA

Based on 34 comparable 2019-2023 Audi S4 listings in MA, the average asking price is $39,758. This listing at $35,463 is $4,295 below average (11% below market). Comparable prices in MA range from $24,995 to $49,197. Similar vehicles spend an average of 69 days on dealer lots in this market.

Similar Audi S4 Listings in MA

8 comparable vehicles within ±2 model years and ±30,000 miles (subject trim: Premium Plus — compare trims below)