Question 1

Is the BMW I8 or Porsche 718 Cayman cheaper?

Accepted Answer

On the open Nordic market, the BMW I8 is a median 16% cheaper than the Porsche 718 Cayman (SEK 629,000 vs SEK 732,000, July 2026). Below we compare the two on price, price span, typical mileage, depreciation and supply — all from our price index.

Question 2

Which holds value better, BMW I8 or Porsche 718 Cayman?

Accepted Answer

On depreciation, the Porsche 718 Cayman loses about 5.9% of its value per year versus 11.2% for the BMW I8 — so the Porsche 718 Cayman holds value best. Indicative, from regression on market data, not guarantees.

Metric	BMW I8	Porsche 718 Cayman
Median price	SEK 629,000	SEK 732,000
Price span (P5–P95)	SEK 498,150 – SEK 1,149,900	SEK 330,133 – SEK 1,704,306
Typical mileage	6,298 mil	3,514 mil
Depreciation / year	SEK 70,220 (11.2%/yr)	SEK 42,832 (5.9%/yr)
Supply in the Nordics	21 cars	28 cars
Days on market (median)	—	—