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U.S. Patent No. 12,236,477 — Patented Automotive Data Standardization Technology
OAV

2021 Porsche 911 Turbo S

2021 Porsche 911View this vehicle at boch exotics →

Vehicle Details

VINWP0AD2A91MS257177
TrimTurbo S
Drivetrain4WD
Engine3.8L H6
TransmissionAutomatic
Fuel TypePremium Unleaded
Inventory Typeused
Days on Lot18

Turbo S

Overpriced
$239,90012,462 mi

Norwood, MA 02062

Is this 2021 Porsche 911 Turbo S a good deal?

OAV verdict: Overpriced

Why: Listed at $239,900, comparable market range $220,287–$234,695, based on 37 comparable listings. Listed 18 days.

Market price position

$239,900 · $5,205 above market high

Comparable range
$220,287 – $234,695
vs. market high
+ $5,205 (2% above)
Comparable vehicles
37

Market Retail Price (MRP™)

$227,491

This vehicle $239,900 · $12,409 (5%) above MRP

MRP™ is the midpoint of the comparable market range — the representative price the market is asking for similar vehicles. How MRP works.

True Retail Value (TRV™)

$238,227

This vehicle $239,900 · $1,673 (1%) above TRV

TRV™ is the average paid price for cars like this in the last 60 days (sold data through 2026-09-23) — an estimate, not an appraisal. How TRV works.

Comparable vehicles nationally recently sold in an estimated 954 days.

What does Demand-Verified mean?

Market Breakdown

Local = comparable listings in the same metro. Regional = comparable listings across the broader state or multi-state region. Both ranges are rebuilt from the market snapshot shown above.

Local Range$220,287 – $234,695
Regional Range$217,888 – $259,900

Boch Exotics

Norwood, MA

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OAV routes your inquiry; pricing, taxes, fees, and availability come from the dealer.

About This 2021 Porsche 911

Listing updated: Sep 23, 2026

Listed by an independent dealer in Norwood, MA · On lot for 18 days · VIN verifiable at NHTSA

This used 2021 Porsche 911 Turbo S is listed at $239,900 by boch exotics in Norwood, MA 02062. It has 12,462 miles on the odometer (dealer-reported, not independently verified by OAV). It features a 4WD drivetrain with a 3.8L H6 engine and Automatic transmission.

OAV's independent, evidence-backed Price-to-Market analysis rates this vehicle as Overpriced — priced above the supported comparable range. Based on 37 comparable listings matched to this vehicle, the estimated market range is $220,287 to $234,695. The comparable range in MA is $220,287 to $234,695. These comparisons match year, make, and model, using trim where the data supports it. OAV does not adjust comparable prices for mileage — every price shown is the real advertised price. On used vehicles, mileage can still cause OAV to withhold a verdict — very high or unreliable mileage, or a lower price better explained by higher-than-typical mileage than by a genuine market discount — rather than call it a deal it can't support.

This vehicle has been on the lot for 18 days.

Analysis powered by OAV's patented inventory standardization technology (U.S. Patent No. 12,236,477). Verdict methodology ptm-verdict-v1 · snapshot Sep 23, 2026. The comparable band (patent pending) is the input; ptm-verdict-v1 is the versioned OAV rule set that turns it into this verdict.

Market context

This listing is part of OAV's broader Norwood, MA coupes market analysis. OAV compares vehicles by local and regional price-to-market ranges and comparable count; days-on-lot and demand signals are shown separately, not as verdict inputs.

How this deal is rated

OAV compares this 2021 Porsche 911 against similar vehicles currently available for sale — same make, model, and year range, using trim where the data supports it. OAV does not adjust comparable prices for mileage; on used vehicles it withholds a verdict when mileage would distort the comparison — very high or unreliable mileage, or a lower price better explained by higher-than-typical mileage than by a genuine market discount — rather than overstate a deal. Based on where this listing falls in that comparable set, it is rated:

  • Great Deal — priced below the comparable-range floor by a meaningful margin (OAV's minimum-gap rule); a listing below the floor by less than that margin is Fair Price.
  • Fair Price — priced within the expected range for comparable vehicles.
  • Overpriced — priced above the typical range for comparable vehicles.
  • Unscored — OAV withholds a verdict when the evidence cannot support one: too few or too widely spread comparables, a price it cannot validate, a branded or salvage title, or mileage that would distort the comparison. The listing stays visible; only the rating is withheld.

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 can surface additional verification signals, but commercial participation never changes a listing's Price-to-Market verdict, eligibility, ranking, or confidence.

How this listing is verified

This vehicle listing was aggregated from an independent dealer in Norwood, MA, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN WP0AD2A91MS257177 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 vehicle market standardization technology (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.

2021 Porsche 911 Market in MA

MA Market Listings

40

Average Price

$222,649

Price Range

$138,337–$282,409

Avg Days on Lot

151

Based on all 40 2019-2023 Porsche 911 listings in the MA market, the average asking price is $222,649. This listing at $239,900 is $17,251 above the broader MA average (8% above the MA average). This is a wider, all-trim comparison across MA; OAV's price verdict above uses the closer comparable set. Comparable prices in MA range from $138,337 to $282,409. Similar vehicles spend an average of 151 days on dealer lots in this market.

Similar Porsche 911 Listings in MA

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

This is a broad, statewide same-model set (any trim, mileage, or title) — not the qualified comparable cohort behind the verdict above; lower prices here typically reflect a different trim, higher mileage, or a branded title.