Blended value of a standard 11 yr, 7k mi example, ~$134K now. The green line weighs confirmed auction sales most heavily (the amber dots — what cars actually hammered for), blends in fast-selling "just-missed" listings, and lightly smooths out month-to-month composition noise.
◫ 38 confirmed auction sales·86 months tracked·since 2017-01·7 active listings
Did our model work? 100% direction calls right
Each faint amber line is a forecast we would have made at that point in the past (12-mo horizon), drawn against what actually happened (blue). Over 1 scored forecasts: 100% got the direction right, median value error ±3%.
━ actual╱ past predictions (ghosts)
Walk-forward: each ghost uses only data available at that date — no hindsight. Data-backed market intelligence, not a guaranteed prediction. Figures are modeled estimates from asking prices, sold comps, and public economic indicators; they can be wrong. Not financial advice.
Where We Think It's Headed
Probability and range, not a single number. Wider = less certain (not bigger gains).
Horizon
Direction
Probability
Confidence
Past accuracy
6 mo
UP
52%
Low
71%
12 mo
UP
56%
Low
100%
24 mo
UP
60%
Low
—
Data-backed market intelligence, not a guaranteed prediction. Figures are modeled estimates from asking prices, sold comps, and public economic indicators; they can be wrong. Not financial advice.
If You’d Bought in 2017
$100K invested 2017-01 → today (9.7 yrs), this car vs where else you could've put the money. Rebased to 100 at the start; the dashed line is inflation (break-even).
━ This car $121K━ S&P 500 $383K━ Gold $366K━ Luxury $355K━ Housing $182K₿ Bitcoin ×80 (off-scale)
Lost ground to inflation. The Dodge Viper (2013-2017) GTS roughly 1.2×'d your money (a real 11% LOSS to inflation). It LAGGED the stock market by about 68% — the same money in the S&P 500 would be larger. It trailed housing (-34%). (Price only — a real round-trip also loses ~10–20% to buy/sell fees and carrying costs.)
Specialty-car prices don't move in a vacuum. These economic indicators have historically led this market — tap one to see it shifted forward by its lead time, overlaid on the value line.
U. Michigan Consumer Sentiment leads by about 2 months (moves against this market, correlation 0.90). Shown shifted forward 2 months so its turns line up with the market's.
M2 Money Supply leads by about 5 months (moves with this market, correlation 0.90). Shown shifted forward 5 months so its turns line up with the market's.
Consumer Discretionary ETF (XLY) leads by about 13 months (moves with this market, correlation 0.88). Shown shifted forward 13 months so its turns line up with the market's.
Nasdaq Composite leads by about 14 months (moves with this market, correlation 0.88). Shown shifted forward 14 months so its turns line up with the market's.
Real Disposable Income per Capita leads by about 19 months (moves with this market, correlation 0.87). Shown shifted forward 19 months so its turns line up with the market's.
━ Dodge Viper (2013-2017) GTS┄ Real Disposable Income per Capita, shifted +19mo
Russell 2000 (small cap) leads by about 13 months (moves with this market, correlation 0.86). Shown shifted forward 13 months so its turns line up with the market's.
Dow Jones Industrial leads by about 13 months (moves with this market, correlation 0.86). Shown shifted forward 13 months so its turns line up with the market's.
━ Dodge Viper (2013-2017) GTS┄ Dow Jones Industrial, shifted +13mo
Why We Think This
Appreciation Momentum
61
Undervaluation
42
Liquidity
38
Speculation Opportunity
57
Depreciation Risk
40
Overvaluation
54
sell-through 50%sell through rate
inventory -1%inventory trend slope
+33% vs 2-yr avgpct vs trailing 24mo
sale prices +1.8%/momedian sale trend slope
+21% vs 12-mo avgpct vs trailing 12mo
28 days on marketmedian days on market
new-listing velocity 0% of activenew listing velocity
vin returned higher VIN relisted +$101,292 vs prior
vin returned higher VIN relisted +$101,292 vs prior
vin returned lower VIN relisted $-44,000 vs prior
vin returned higher VIN relisted +$100,000 vs prior
vin returned lower VIN relisted $-44,000 vs prior
Data-backed market intelligence, not a guaranteed prediction. Figures are modeled estimates from asking prices, sold comps, and public economic indicators; they can be wrong. Not financial advice.