BMW Z4 M Coupe vs Porsche Cayman S
The median verified BMW Z4 M Coupe sale is $34,500 against $34,500 for the Porsche Cayman S, from 107 and 439 verified sales respectively. Over the past 12 months the median BMW Z4 M Coupe sale price is up 4.7% and the median Porsche Cayman S sale price is down 17%, measured against the prior year's median. Every figure is a completed sale, never an estimate or an asking price.
BMW Z4 M Coupe vs Porsche Cayman S: the numbers
| BMW Z4 M Coupe | Porsche Cayman S | |
|---|---|---|
| Median sale (USD) | $34,500 | $34,500 |
| Sold price range (USD) | $21,416 – $66,500 | $10,980 – $76,500 |
| Verified sales tracked | 107 | 439 |
| Sold, last 12 months | 17 | 95 |
| Median sold, 12-month change | +4.7% | -17% |
| Average sale mileage | 53,768 mi | 48,573 mi |
| Model years tracked | 2006–2009 | 2006–2016 |
| For sale now | — | 152 from $17,350 |
Medians and ranges are USD completed sales; counts include every tracked currency. The 12-month change compares the past 12 months’ median with the prior 12 months’ and appears only when each window holds at least three sales — it tracks the median of what actually sold, so it moves with the mix of years, trims and mileages that came to market as well as with the market itself. Methodology
The numbers above describe what has already happened at auction. DriveIndex’s Head-to-Head Verdict puts the Z4 M Coupe and the Cayman S side by side on mileage-adjusted fair value, the Value Signal, 1–5 year projections, market liquidity and running costs.
Compare them in the app →Latest verified sales
Recent BMW Z4 M Coupe sales
| Jul 20, 2026 | $39,000 | 24,000 mi |
| Jul 15, 2026 | $29,250 | 70,000 mi |
| Jul 6, 2026 | $47,250 | 24,000 mi |
| Jul 6, 2026 | $34,000 | 71,200 mi |
| Jun 17, 2026 | $66,500 | 5,000 mi |
Recent Porsche Cayman S sales
| Sep 18, 2026 | $30,500 | 84,000 mi |
| Sep 18, 2026 | $25,000 | 32,225 mi |
| Sep 14, 2026 | $34,500 | 70,000 mi |
| Sep 9, 2026 | $62,000 | 6,000 mi |
| Sep 4, 2026 | $21,250 | 76,000 mi |
The five most recent verified sales on each side. The full archive is in the app.
Related comparisons
BMW Z4 M Coupe vs Porsche Cayman S: Frequently Asked Questions
Is a BMW Z4 M Coupe more expensive than a Porsche Cayman S?
BMW Z4 M Coupe sells for more: the median verified sale is $34,500 against $34,500 for the Porsche Cayman S. Both medians come from completed auction sales, not estimates or asking prices.
Which sells more often, the BMW Z4 M Coupe or the Porsche Cayman S?
The Porsche Cayman S. 17 BMW Z4 M Coupe sales and 95 Porsche Cayman S sales were recorded in the past 12 months, so the Porsche Cayman S changes hands more often — a rough read on how easy each one is to buy or sell.
Have BMW Z4 M Coupe or Porsche Cayman S prices moved more in the past year?
The median BMW Z4 M Coupe sale price is up 4.7% versus the prior year. The median Porsche Cayman S sale price is down 17% versus the prior year. Both figures describe what has already changed hands, and a model spans many years and mileages, so the mix that came to market moves them as well as the market does. The mileage-adjusted Value Signal and the 1–5 year projections for each car are in the app.
Where do these BMW Z4 M Coupe vs Porsche Cayman S numbers come from?
From completed sales at the world's leading collector-car auction houses and marketplaces, verified and normalized by DriveIndex, plus active for-sale listings. Outliers and lots that failed to meet reserve are excluded — a reserve-not-met bid is not a sale.