Over a standing quarter mile on dry asphalt the BMW M240i G42 is the quicker car,
covering it in 12.42 s at
111.8 mph against the Porsche 718 Cayman’s
12.81 s — a margin of
0.38 s. To 60 mph the BMW M240i G42 takes
3.99 s and the Porsche 718 Cayman
4.18 s.
Simulated, not measured — computed from each car’s published kerb mass,
rated power and drivetrain, then fitted to its own published acceleration figures.
Dry asphalt, 20 °C, sea level, 1 ft rollout.
Porsche 718 CaymanBMW M240i G42
Watch the run in full — then change the surface, the weather
or the distance and run it again.
Down the strip
Standing start
Porsche 718 Cayman
BMW M240i G42
0–60 mph
4.18 s
3.99 s
0–100 mph
10.69 s
9.67 s
60 ft
1.99 s
1.96 s
1/8 mile
8.25 s
8.01 s
1/4 mile
12.81 s
12.42 s
Trap speed
108.9 mph
111.8 mph
Each car is trimmed to its own published figures —
9/10 for the Porsche 718 Cayman,
9/10 for the BMW M240i G42 —
so a heavier car can still be the quicker one if that is what it tests.
Is the Porsche 718 Cayman or the BMW M240i G42 faster?
The BMW M240i G42. Over a standing quarter mile it runs 12.42 s to the Porsche 718 Cayman's 12.81 s, a margin of 0.38 s, and it reaches 60 mph in 3.99 s against 4.18 s. These are theoretical times from a physics simulation, not measured runs.
What is the Porsche 718 Cayman 0-60 time?
The Porsche 718 Cayman reaches 60 mph in 4.18 s, simulated on dry asphalt at 20 °C with a 1 ft rollout. It covers the standing quarter mile in 12.81 s at 108.9 mph.
What is the BMW M240i G42 0-60 time?
The BMW M240i G42 reaches 60 mph in 3.99 s, simulated on dry asphalt at 20 °C with a 1 ft rollout. It covers the standing quarter mile in 12.42 s at 111.8 mph.
What trap speed does each car run?
The Porsche 718 Cayman trips the lights at 108.9 mph and the BMW M240i G42 at 111.8 mph at the end of the quarter mile. These are theoretical times from a physics simulation, not measured runs.
Are these real measured times?
No. Every time on this page is produced by a physics simulation, not by a stopwatch at a drag strip. Each car is modelled from its published kerb mass, rated power, drivetrain and gearing, then trimmed until it matches its own published acceleration figures — 9 of 10 for the Porsche 718 Cayman and 9 of 10 for the BMW M240i G42. Conditions are identical for both cars: dry asphalt, 20 °C, sea level, 1 ft rollout.
Figures regenerated 2026-10-12. Every number on this page is computed by the simulator at build time, so the page and the app can never disagree.