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

VINWP0JB092XHS861009
Exterior ColorSilver
Inventory Typeused
Days on Lot1485

1987 Porsche 928

Unscored
$32,500150,911 mi

North Andover, MA 01845

Is this 1987 Porsche 928 a good deal?

OAV verdict: Unscored

Why: Listed at $32,500, comparable market range $32,500–$32,500. Days on lot: 1485 days (market average 776 days).

Market price position

32,500
32,500
32,500

$32,500 · only listing at this price

$32,500 — single data point
Regional range
$32,500 (0 listings)
vs. market
Exact match — no spread
Comparable vehicles
0

Silverstone Motorcars

North Andover, MA

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

View all vehicles from silverstone motorcars

About This 1987 Porsche 928

Listing updated: May 31, 2026

Listed by an independent dealer in North Andover, MA · On lot for 1485 days · VIN verifiable at NHTSA

This used 1987 Porsche 928 is listed at $32,500 by silverstone motorcars in North Andover, MA 01845. It has 150,911 miles on the odometer. The exterior color is Silver..

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 North Andover market, the estimated market range is $32,500 to $32,500.

This vehicle has been on the lot for 1485 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 North Andover, MA market analysis. OAV compares vehicles using local and regional price-to-market ranges, days-on-lot, comparable count, and demand signals where available.

How this deal is rated

OAV compares this 1987 Porsche 928 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:

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 North Andover, MA, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN WP0JB092XHS861009 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.

1987 Porsche 928 Market in MA

Comparable Vehicles

2

Average Price

$46,200

Price Range

$32,500–$59,900

Avg Days on Lot

776

Based on 2 comparable 1985-1989 Porsche 928 listings in MA, the average asking price is $46,200. This listing at $32,500 is $13,700 below average (30% below market). Comparable prices in MA range from $32,500 to $59,900. Similar vehicles spend an average of 776 days on dealer lots in this market.