Based on thin data, this low-confidence outlook for the Porsche 911 Turbo S (993) shows high appreciation momentum at 99.3 and significant overvaluation at 99.94. While there is a 51% probability of an upward movement in the next 6 months, longer horizons suggest a potential 47% probability of a downward trend over 12 months, both within a volatile regime. Advance Retail Sales, with a correlation of 0.87, is the strongest identified leading indicator.
What It's Actually Worth
Blended value of a standard 29 yr, 35k mi example, ~$275K 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.
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 ±18%.
━ 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
51%
Low
100%
12 mo
DOWN
47%
Low
100%
24 mo
DOWN
45%
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 2022
$100K invested 2022-01 → today (4.4 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 $141K━ S&P 500 $180K━ Gold $224K━ Luxury $80.3K━ Housing $119K₿ Bitcoin $152K (off-scale)
Solid store of value, but lagged the stock market. The Porsche 911 Turbo S (993) roughly 1.4×'d your money (a real, inflation-adjusted 1.2× gain). It LAGGED the stock market by about 22% — the same money in the S&P 500 would be larger. It beat housing (+18%). (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.
Case-Shiller National Home Price leads by about 22 months (moves with this market, correlation 0.87). Shown shifted forward 22 months so its turns line up with the market's.
━ Porsche 911 Turbo S (993)┄ Case-Shiller National Home Price, shifted +22mo
Advance Retail Sales leads by about 15 months (moves with this market, correlation 0.87). Shown shifted forward 15 months so its turns line up with the market's.
Nonfarm Payrolls (jobs) leads by about 10 months (moves with this market, correlation 0.86). Shown shifted forward 10 months so its turns line up with the market's.
PCE Price Index leads by about 0 months (moves with this market, correlation 0.85). Shown shifted forward 0 months so its turns line up with the market's.
Gold (futures) leads by about 4 months (moves with this market, correlation 0.84). Shown shifted forward 4 months so its turns line up with the market's.
━ Porsche 911 Turbo S (993)┄ Gold (futures), shifted +4mo
Core CPI (ex food/energy) leads by about 0 months (moves with this market, correlation 0.84). Shown shifted forward 0 months so its turns line up with the market's.
━ Porsche 911 Turbo S (993)┄ Core CPI (ex food/energy), shifted +0mo
CPI (All Urban Consumers) leads by about 0 months (moves with this market, correlation 0.84). Shown shifted forward 0 months so its turns line up with the market's.
10-Year Treasury Yield leads by about 23 months (moves with this market, correlation 0.83). Shown shifted forward 23 months so its turns line up with the market's.
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.