Porsche 928 Market Analysis — September 2026
Executive Summary
The current market for the Porsche 928 remains stable, with a year-over-year price change of 2.4%. This indicates a modest appreciation in value over the past year. An actionable insight is to focus on models from the late 1980s, which have historically shown higher sales volumes and prices.
Market Snapshot
- Current inventory: 193 active listings
- Median asking price: $20,000 (historical median: $25,850)
- Price trend: Stable (2.4% YoY)
- Market velocity: 88 days average time on market
PRICE TRENDS & APPRECIATION
Analyzing the quarterly trends, the market shows signs of stability with fluctuations in median prices. For instance, in 2026-Q2, the median price was $24,450, while in 2026-Q3, it increased to $28,625. The average price in 2025-Q2 peaked at $48,336, indicating potential appreciation for certain models. The overall trend suggests that while there are fluctuations, the market is not in decline, and prices are generally holding steady.
Auction Market Dynamics
The sell-through rate stands at 76.1%, indicating a healthy auction market. There were 1,212 vehicles sold compared to 193 unsold, suggesting that most sellers are achieving sales. However, the median price for sold vehicles is $26,222, while the median high bid is $22,000, indicating a reserve gap where sellers may have unrealistic expectations. This gap suggests that while buyers are willing to pay around $22,000, sellers are often asking for more, which could lead to unsold vehicles if expectations are not adjusted.
Configuration Value Guide
The body style breakdown reveals that Hatchbacks command a higher average price of $42,449 compared to Coupes, which average $18,114. This indicates a significant premium for Hatchback configurations. Additionally, models from 1987, 1989, and 1988 are the most common and have historically garnered higher sales, suggesting that these years may offer better investment potential.
Mileage Impact
Mileage analysis shows that vehicles with under 50,000 miles command an average price of $68,979, significantly higher than the $20,544 average for those with over 100,000 miles. This indicates a premium of approximately $48,435 for low-mileage vehicles, highlighting the importance of mileage in valuation.
Regional Pricing
Geographic distribution indicates that the West has the highest number of listings (98) with an average price of $24,732. In contrast, the South has fewer listings (44) but a higher average price of $35,668. This suggests that buyers in the South may be willing to pay more, potentially indicating a regional arbitrage opportunity for sellers in the West.
Market Health Indicators
The average days on market is 88, with 30 new listings this week and 44 listings experiencing price reductions. This suggests a moderate supply of vehicles, but the presence of price reductions may indicate soft demand. The sell-through rate of 76.1% further supports the notion that while the market is stable, sellers may need to be more flexible with pricing.
Investment Outlook
Given the stable trend direction and modest appreciation indicated by the 2.4% year-over-year price change, the Porsche 928 appears to be a stable asset class for investment. While not experiencing rapid appreciation, it is unlikely to depreciate significantly in the near term, making it a hold recommendation for current owners.
Buying Recommendations
Prospective buyers should focus on late 1980s models, particularly the Hatchback configurations, which command higher prices and have shown better sales performance. Target price ranges should be between $20,000 and $30,000 for vehicles in good condition, especially those with lower mileage. Buyers should be cautious of listings with high asking prices relative to auction outcomes, as this may indicate unrealistic seller expectations.
This analysis is generated from CarSearch.Pro's market database (1,734 historical sales, 193 active listings across 14 marketplaces) and refreshed automatically. It is market commentary, not financial advice.