An executive claims the Model S can only perform a sub-three-second zero-to-62 mph launch "twice -- the third attempt will fail."
Speaking to media at a recent event, Porsche EV VP Stefan Weckbach suggested Tesla's claims of record acceleration are not repeatable after a few attempts, according to quotes posted by Autoblog.
The executive said the top-trim Model S can launch from zero to 62 mph in under three seconds, but "only twice" since the "system is throttled."
"The third attempt will fail," he claimed. "Porsche drivers won't need to worry about that."
Weckbach may be referring to Tesla's earlier software that limited the number of full-power launches to reduce wear on the powertrain. The company claimed to have revised the software to remove the throttling, however, after the practice was uncovered by owners.
The German performance marque has promised the Mission E will be capable of maintaining speed through an entire track session, with a battery system that can support "reproducible performance and a top speed which can be maintained for long periods."
The Mission E's 800-volt battery system will also support extremely rapid recharging, enabling 250 miles of range to be added from a 20-minute plug-in session.
Porsche expects to begin first deliveries next year.