Audi S6 e-tron Sportback vs BMW M3 (2025)
Price gap, MSRP
$2,700
- S6 e-tron Sportback: 1.4 in more rear legroom.
- M3: $2,700 cheaper, 3.2 cu ft more cargo.
- M3 wins 4 of 6 measures.
| Measure | S6 e-tron Sportback | M3 | Winner |
|---|---|---|---|
| MSRP | $78,700 | $76,000 | M3 |
| Horsepower | N/A | 473 hp | N/A |
| Torque | N/A | 406 lb-ft | N/A |
| MPG or MPGe | N/A | 19 mpg | N/A |
| Energy cost a year | N/A | $2,021 | N/A |
| Cargo, max | 13.7 cu ft | 16.9 cu ft | M3 |
| Cargo, seats up | 14.0 cu ft | 16.9 cu ft | M3 |
| Rear legroom | 37.0 in | 35.6 in | S6 e-tron Sportback |
| Front legroom | 41.0 in | 41.6 in | M3 |
| Length | 195.0 in | 189.1 in | Not scored |
| Width | 74.0 in | 74.3 in | Not scored |
| Curb weight | 4,486 lb | 3,840 lb | Not scored |
| Seats | 5 | 5 | About the same |
| Ground clearance | N/A | 4.7 in | N/A |
| 0-60 mph | N/A | 3.2 s published | N/A |
| Basic warranty | N/A | 4 yr / 50,000 mi | N/A |
Not scored: length, width, curb weight. N/A rows are not counted.
Nearest trims by price
| Trim | Nearest in price | Gap |
|---|---|---|
| S6 e-tron Sportback quattro Premium $78,700 | M3 Competition Sedan RWD $80,200 | $1,500 |
| M3 Sedan RWD $76,000 | S6 e-tron Sportback quattro Premium $78,700 | $2,700 |
Cost to run
No total: a price or rating is missing.
12,000 miles a year. Gas $3.20. Electricity 17 cents per kWh.
| Cost | S6 e-tron Sportback | M3 |
|---|---|---|
| MSRP | $78,700 | $76,000 |
| Fuel or charging, 1 year | N/A | $2,021 |
| Fuel or charging, 6 years | N/A | $12,126 |
| Total, 6 years | N/A | $88,126 |
Which is better for me?
Weight each group from 0 to 10. MPG uses fuel or charging cost.
Equal weights: M3 wins.
No single weight change flips the winner.
| Group | Ahead | By |
|---|---|---|
| Price | M3 | 3% |
| MPG | N/A | |
| Power | N/A | |
| Space | M3 | 19% |
| Towing | N/A |
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