Porsche offers the Cayman with an engine linked to both the 911’s and Boxster’s. It is the usual flat six with, in the case of the Cayman S that is the most popular version, power between that of a Boxster S and an entry-level 911.
A six-speed manual gearbox is standard, with the PDK dual-clutch automatic system available as an option.
BMW M3 drivers will have little to fear from a hastily driven Cayman, judging by the figures achieved by our original Cayman S test car. Despite a not-too-corpulent 1340kg kerb weight and excellent traction, it launches from rest to 60mph in 5.1sec (0.3sec behind the M3), posting a respectable 2.0sec 0-30mph time on the way.
It just doesn’t have the power to cut below the magic 5.0sec marker that separates the brisk from the genuinely fast. But the Cayman is a car whose performance is rendered undramatic by superior chassis engineering.
The 12.0sec sprint to 100mph, though quick by any standards, never feels especially physical; nor does its ability to shrink the crucial 30-70mph margin into a 4.4sec surge. At the Bruntingthorpe proving ground in Leicestershire, the Cayman managed a 155mph top-speed run with more to come, so the claimed 171mph maximum is entirely believable.