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So the four-cylinder Porsche Cayman… Right, I’m just going to give you the facts on the Porsche 718 Cayman to start with, and move on to opinion further down. Following on from the Boxster, the Cayman has a new engine. Instead of a flat six, it’s a four-cylinder turbo. In the standard Cayman it’s a 2.0 monoscroll that delivers 296bhp and 280lb ft, while the S has a wider bore (102mm rather than 91mm) yielding 2.5 litres. That means 345bhp and 310lb ft between 1,950 and 4,500rpm. Its turbo has variable geometry. Both are more powerful than the outgoing naturally aspirated Caymans (the 2.7 had 271bhp/214lb ft, the 3.4 S, 321bhp/273lb ft), and so have better acceleration by a few tenths whether you opt for manual or PDK. The manual S we have here does 0-62mph in 4.6secs, where the old one took 5.0secs. They’re also more efficient. This S is claimed to return 34.9mpg and 184g/km of CO2, against the 32.1mpg/206g/km of the old car. Weight has gone up by 35kg.