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

VIN1N4AL3AP4JC197057
TrimSL
Exterior ColorGray
DrivetrainFWD
Engine2.5L I4
TransmissionCVT
Fuel TypeUnleaded
Inventory Typeused
Days on Lot65

2018 Nissan Altima

SL

Unscored
$12,599108,057 mi

South Portland, ME 04106

Is this 2018 Nissan Altima SL a good deal?

OAV verdict: Unscored

Why: Listed at $12,599, comparable market range $12,599–$12,599. Days on lot: 65 days (market average 44 days).

Market price position

12,599
12,599
12,599

$12,599 · only listing at this price

$12,599 — single data point
Regional range
$12,599 (0 listings)
vs. market
Exact match — no spread
Comparable vehicles
0
Demand-Verified· Backed by recent sales data
Faster-than-average sell-through

Similar vehicles recently sold in an estimated 1045 days.

What does Demand-Verified mean?

Carmax South Portland

South Portland, ME

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

View all vehicles from carmax south portland

Request availability and out-the-door price

OAV will route your inquiry to Carmax South Portland for current availability of this 2018 Nissan Altima SL and an out-the-door price quote (taxes, fees, addons included).

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

About This 2018 Nissan Altima

Listing updated: Jun 27, 2026

Listed by an independent dealer in South Portland, ME · On lot for 65 days · VIN verifiable at NHTSA

This used 2018 Nissan Altima SL is listed at $12,599 by carmax south portland in South Portland, ME 04106. It has 108,057 miles on the odometer. The exterior color is Gray. It features a FWD drivetrain with a 2.5L I4 engine and CVT 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 South Portland market, the estimated market range is $12,599 to $12,599.

This vehicle has been on the lot for 65 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 South Portland, ME sedans 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 2018 Nissan Altima 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 South Portland, ME, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 1N4AL3AP4JC197057 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.

2018 Nissan Altima Market in ME

Comparable Vehicles

17

Average Price

$15,199

Price Range

$6,999–$22,980

Avg Days on Lot

44

Based on 17 comparable 2016-2020 Nissan Altima listings in ME, the average asking price is $15,199. This listing at $12,599 is $2,600 below average (17% below market). Comparable prices in ME range from $6,999 to $22,980. Similar vehicles spend an average of 44 days on dealer lots in this market.

Similar Nissan Altima Listings in ME

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