BMW E46 M3 / Porsche 981 Cayman S
Track-Proven Rivals: BMW E46 M3 vs Porsche 981 Cayman S
The BMW E46 M3 and Porsche 981 Cayman S represent two distinct approaches to performance, yet LapMeta's comprehensive data reveals remarkably close competition. With 777 head-to-head lap comparisons across 54 common tracks, these cars have been thoroughly tested against each other—and the results might surprise you. Average lap time difference: just 6.59 seconds, with battles as close as 0 seconds.
The Specifications
BMW E46 M3:
- Engine: Inline 6
- Power: 337 hp / 364.72 lb-ft torque
- Weight: 3241 lbs (Power-to-weight: 9.62 lbs/hp)
- Drivetrain: RWD | 6 speed manual
- 0-60 mph: 4s
- Current Value: $40000
Porsche 981 Cayman S:
- Engine: 3.4L 6MT
- Power: 325 hp / 368.78 lb-ft torque
- Weight: 2910 lbs (Power-to-weight: 8.95 lbs/hp)
- Drivetrain: RWD | 6-speed manual
- 0-60 mph: 5s
- Current Value: $60000
Track Performance Analysis
Across 777 recorded laps on 54 different tracks, the data reveals:
- BMW E46 M3 faster: 511 times (65.8%)
- Porsche 981 Cayman S faster: 264 times (34%)
- Average difference: 6.59 seconds
- Closest battle: 0 seconds
The 12 hp power difference and 331 pound weight gap create distinct performance characteristics. The BMW E46 M3's 9.62 lbs/hp power-to-weight ratio compares to the Porsche 981 Cayman S's 8.95 lbs/hp, explaining much of the on-track dynamic.
The Economics
Current market values show a $20000 gap, with the BMW E46 M3 at $40000 and the Porsche 981 Cayman S at $60000. This price difference—combined with the minimal lap time gap—makes the value proposition clear for budget-conscious track enthusiasts.
The Verdict
With only 6.59 seconds separating these cars on average, driver skill and setup matter far more than spec sheet numbers. The BMW E46 M3 wins 65.8% of battles, but the margins are close enough that track conditions, tire choice, and driver experience swing results regularly.
Choose the BMW E46 M3 if you value its engineering approach and are willing to pay the $20000 premium. Choose the Porsche 981 Cayman S if near-identical performance at a different price point appeals to you. Both are proven track weapons with 54 tracks of data backing their capabilities.