2003 Porsche Boxster
21MPG
Combined
2
Trims
Updated February 27, 2026
Get the full picture on the 2003 Porsche Boxster. As a Sports Car, it achieves 19–21 combined MPG depending on trim and has not yet been rated by NHTSA. Below you’ll find detailed specs for every trim, plus recall information and competitor comparisons.
2003 Porsche Boxster Specifications
| Spec | Value |
|---|---|
| Combined MPG | 19–21 combined MPG depending on trim |
| City MPG | 18 |
| Highway MPG | 27 |
| Body Style | Sports Car |
| Fuel Type | Premium |
| Drive | RWD |
| Available Trims | 2 |
Available Trims
| Trim | MPG (City/Hwy/Combined) | Engine | Transmission |
|---|---|---|---|
| Man | 18/27/21 | 2.7L 6cyl | Manual 5-spd |
| 6 cyl | 16/24/19 | 2.7L 6cyl | Automatic (S5) |
Annual Fuel Cost
Based on EPA estimates, the 2003 Porsche Boxster costs approximately $2,925 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.
Compare the 2003 Porsche Boxster
See how it stacks up against similar vehicles:
Other Model Years
- 2020 Porsche Boxster
- 2019 Porsche Boxster
- 2018 Porsche Boxster
- 2017 Porsche Boxster
- 2016 Porsche Boxster
- 2015 Porsche Boxster
- 2014 Porsche Boxster
- 2013 Porsche Boxster
- 2012 Porsche Boxster
- 2011 Porsche Boxster
- 2010 Porsche Boxster
- 2009 Porsche Boxster
- 2008 Porsche Boxster
- 2007 Porsche Boxster
- 2006 Porsche Boxster
- 2005 Porsche Boxster
- 2004 Porsche Boxster
- 2003 (this page)
- 2002 Porsche Boxster
- 2001 Porsche Boxster
- 2000 Porsche Boxster
Check Vehicle History
Considering a used Porsche Boxster? Get a comprehensive vehicle history report including accident records, ownership history, and more.
🔍 Check Porsche Boxster Vehicle History
Check VIN →
Check Vehicle History
Check VINGet the full story — accidents, ownership, recalls, odometer, and more. Decode any VIN instantly.