Quote:
Originally Posted by Boxtaboy
It's all a marketing decision. The 2.7L went from 217hp in 2000 to 245hp today. Still a 2.7L. Point is, Porsche has to look at the lifecycle of the car, and make it loook like there are upgrades as the car goes from year to year so that buyers will think that they're getting a "newer, more updated version", and are inticed to continue buying the car. They planned incremental upgrades in power from the get go, and thus, it is a marketing issue, not a technological one. If they really wanted to offer 245hp on the 2.7 from the get go, they could've, but then as the years went by, they would have had to up the numbers incrementally as well, and if they did that, it would nip at the heels of the Box S or 911, which is not allowed at Porsche. 
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That's true, but as time goes on, there are technological improvements to the engines as well. They are just not summed up in the peak power. There are many aspects to the behavior of an engine, if you only look at power, you can end up with something that isn't especially enjoyable.
The 3.4 in the 996 makes the same peak power as the Cayman 3.4. The overall powerband and efficiency of the engine has changed however. There are improvements with time.