Ok, so where is the 700 horsepower Camaro. None of the engines I read in the linked article even broke the 650hp marker so that a plausible claim of rounding up happened. I am impressed that they have a 620 hp aspirated engine and a blown version at 638 hp. I'm certain that these two machines are powerful beasts that show their track pedigree. Some would say that the difference of an additional 62 hp is not all that significant, but it is still about 10% less than what is claimed on the cover. If Chevrolet and Hemmings News can't get this right what else do they report that is just plain wrong.

I expect this type of bending of the facts from a car salesman in the showroom, not in an engineering forum.

I had a 1968 Z28 302 that Had been bored out .030,with 11.5 pistons,isky cam,high rise intake,hookers,sodium filled exhaust valves, and it dyno'd at over 600 hp at 6800 rpm.

Not much progress in over 40 years.Way to go GM.

Please keep in mind that around 1972 the rating system changed from gross to net horsepower; most engines "lost" about 15%, even with the sales departments rounding up of all such numbers. 600 gross hp is only about 510 net.

Even if the horsepower is impressive, the new Camaro is still way too heavy. The Mustang at 3400 pounds (V6) is hundreds of pounds lighter, but still too big and heavy. The Mopar equivalent is even heavier than the Camaro. My 66 289 and my 1985 5.0 are both under 3000 pounds with me aboard. Why can no one in Detroit make a nice sporty car under 3000 pounds? Is there a reason that the Mopar and Chevy are over 2 tons empty? Modern pickups are so tall no one can use the bed without a step stool, and the pony cars have followed suit: too tall and too heavy.

We should all know by now that this 600 hp car is not to make money, or because there is that much pent-up demand for power. When this dream is offered, GM will sell a lot more 6 cyl Camaros and more non-Camaros. That is why they make dream machines. Adding aftermarket name brands is not because GM parts would not work. It is to make the link to racing and its supporting sponsors. If they plan to sell 10 of these, the aftermarket stuff is simpler, too. If they were to sell 100,000 of these in the next few years, in-house parts would have been better for GM.

Calling this an 'engineering exercise' gets this marketing ploy into enthusiast publications like this one, at almost no cost to GM. Marketing 101...