HP given is always crank hp (esp. when talking specifically about the motor). The hp you have depends on the trim levels your comparing, but if they both have the LZ4 it looks like the hp and torque are slightly greater. These changes are usually due to tuning, intake systems, exhaust setups, etc. and normally don't have much to do with the actual motor.
LZ4???? How do I tell if thats the engine in my ride
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Not necessarily. Here's the key passage in the Wikipedia article that you quoted:
"In 2008 SAE ratings dropped the horsepower ratings"
This could mean many things: There was a slight change between the 2007 and 2008 model year (not probable), SAE decided to remeasure using more refined criteria and found that the HP ratings weren't quite the same as they were before (pretty likely), there was a difference in the fuel mixture that day (could be), and so on...
Thinking your vehicle is superior because you might or might not have 5 extra horsepower is like thinking you have a superior, um, thingy because it is a quarter of a millimeter longer than someone else's - especially if your ruler is artificially shorter (therefore giving longer readings) than everyone else's.
Really, it's not about how much horsepower you have but whether or not you know how to use it correctly. The more critical component for getting you off the line and up to speed quickly, torque, is identical between the model years.
~ MattInSoCal
Yes but that higher rating in 07 gives those owners that much more e-thuggery ammo
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