BMW Z4 vs Porsche 718 Boxster (2025)
Price gap, MSRP + destination
$21,220
- Z4: $21,220 cheaper, 4 mpg better.
- 718 Boxster: 45 hp more, 0.5 s quicker to 60.
- Z4 wins 5 of 9 measures.
| Measure | Z4 | 718 Boxster | Winner |
|---|---|---|---|
| MSRP + destination | $55,675 | $76,895 | Z4 |
| Horsepower | 255 hp | 300 hp | 718 Boxster |
| Torque | 295 lb-ft | 280 lb-ft | Z4 |
| MPG combined | 28 mpg | 24 mpg | Z4 |
| Cargo, max | 9.9 cu ft | 4.4 cu ft | Z4 |
| Cargo, seats up | 9.9 cu ft | N/A | N/A |
| Front legroom | 42.2 in | N/A | N/A |
| Length | 170.7 in | 172.4 in | Not scored |
| Width | 73.4 in | 70.9 in | Not scored |
| Curb weight | 3,314 lb | 3,097 lb | Not scored |
| Seats | 2 | 2 | About the same |
| Ground clearance | 4.7 in | 3.6 in | Z4 |
| 0-60 mph | 5.2 s tested | 4.7 s tested | 718 Boxster |
| Basic warranty | 4 yr / 50,000 mi | 4 yr / 50,000 mi | About the same |
Not scored: length, width, curb weight. N/A rows are not counted.
Nearest trims by price
| Trim | Nearest in price | Gap |
|---|---|---|
| Z4 sDrive30i RWD $54,500 | 718 Boxster RWD $74,900 | $20,400 |
| 718 Boxster RWD $74,900 | Z4 M40i RWD $67,000 | $7,900 |
Cost to run
Z4 costs $22,591 less over 6 years.
12,000 miles a year. Gas $3.20. Electricity 17 cents per kWh.
| Cost | Z4 | 718 Boxster |
|---|---|---|
| MSRP + destination | $55,675 | $76,895 |
| Fuel or charging, 1 year | $1,371 | $1,600 |
| Fuel or charging, 6 years | $8,229 | $9,600 |
| Total, 6 years | $63,904 | $86,495 |
Which is better for me?
Weight each group from 0 to 10. MPG uses fuel or charging cost.
Equal weights: Z4 wins.
No single weight change flips the winner.
| Group | Ahead | By |
|---|---|---|
| Price | Z4 | 28% |
| MPG | Z4 | 14% |
| Power | 718 Boxster | 15% |
| Space | Z4 | 56% |
| Towing | N/A |
Other years
What this cannot tell you
Your price and mpg will differ.
Reliability and safety are not included.
- 2 or more sources
- 1 source
- Model-level, rule or estimate
- Sources disagree