---
title: "1978 Triumph Stag - Auction Values"
description: "The 1978 Triumph Stag typically sells for $14,905 based on 1 recent sales."
url: "https://oldcarsdata.com/triumph/stag/year/1978"
dateModified: "2026-08-03T00:00:00.000Z"
type: "vehicle-year"
tags: ["Triumph", "Stag", "1978", "classic cars", "auction data"]
---

# 1978 Triumph Stag

## Direct Answer

A 1978 Triumph Stag typically sells for about $14,905 at auction, with recent examples ranging from $14,905 to $14,905 based on 1 year-specific sales from the last 12 months.

## Summary

The 1978 Triumph Stag typically sells around **$14,905** at auction (based on 1 sales in the last 12 months).

## Year-Specific Analysis

The 1978 Triumph Stag represents a specific production year with 1 documented auction sales in the past 12 months. This year commands a premium of 61% above the overall model median, reflecting its position within the model's production timeline. The median sale price of $14,905 places it above the broader Triumph Stag market average of $9,276. Values for this year range from $14,905 to $14,905, demonstrating notable variation based on condition, mileage, and specific configuration.

## Data Limitations

Old Cars Data estimates market value from completed auction results. Private-party sales, dealer asking prices, taxes, fees, and undocumented condition details are not included unless they appear in source data.

## 1978 Price Statistics

- **Median Price**: $14,905
- **Price Range**: $14,905 - $14,905
- **Sales Count**: 1

## Overall Model Statistics

- **Median Price (All Years)**: $9,276
- **25th Percentile**: $7,800
- **75th Percentile**: $12,000
- **Total Auctions**: 5

## Recent 1978 Sales

| Date | Price | Mileage | Location | Status |
|------|-------|---------|----------|--------|
| 2025-08-18 | $14,905 | 67,365 | N/A | Sold |
| 2023-10-03 | $10,755 | 75,639 | Radlett, BUCKINGHAMSHIRE | Sold |
| 2022-01-25 | $17,500 | 35,500 | N/A | Sold |

## Related Links

- [All Triumph Stag Years](/triumph/stag)
- [Price History](/triumph/stag/price-history)
- [Value Estimator](/triumph/stag/value-estimator)

## Data Sources

Data aggregated from Bring a Trailer, Cars & Bids, Hemmings, AutoHunter, Hagerty, PCAR Market, All Collector Cars, Gooding & Co, RM Sotheby's, Barrett-Jackson, Sotheby's Motorsport, Car & Classic, The Market, Broad Arrow, MB Market, Mecum Auctions, PistonHeads, Collecting Cars, Bonhams. Refreshed every 15 minutes.