What does the 2021 Porsche 718 Boxster cost per mile?
Fuel cost a mile
14.5cents
- 2025 IRS rate: 70 cents a mile.
- Margin: 55.5 cents a mile.
- $5,545 per 10,000 miles.
- 2021 Porsche 718 Boxster RWD: 22 mpg.
- Median of 17 gas and hybrid convertibles (2021): 16.8 cents a mile.
Gas $3.20. 2025 IRS rate 70 cents.
| Trim | Rating | Cost a mile | Margin a mile | Per 10,000 mi |
|---|---|---|---|---|
| RWD | 22 mpg | 14.5 cents | 55.5 cents | $5,545 |
| T RWD | 22 mpg | 14.5 cents | 55.5 cents | $5,545 |
| S RWD | 21 mpg | 15.2 cents | 54.8 cents | $5,476 |
| GTS 4.0 RWD | 19 mpg | 16.8 cents | 53.2 cents | $5,316 |
| Spyder RWD | 19 mpg | 16.8 cents | 53.2 cents | $5,316 |
| 25 Years Anniversary Edition Roadster 2D RWD | 19 mpg | 16.8 cents | 53.2 cents | $5,316 |
| 25 Years RWD | 19 mpg | 16.8 cents | 53.2 cents | $5,316 |
| 718 Spyder RWD | 19 mpg | 16.8 cents | 53.2 cents | $5,316 |
What this cannot tell you
Fuel only. Insurance, repairs and value loss not counted.
The IRS rate covers every cost, not fuel alone.
- 2 or more sources
- 1 source
- Model-level, rule or estimate
- Sources disagree