“At 8.4 liters, the V10 engine has about twice as many cylinders as it needs to create all 645 HP.”

What the actual fuck is that supposed to mean? Well, lets break it down:

“At 8.4 liters...” This introductory clause implies a subsequent discussion about torque. After all, there’s no replacement for displacement. But instead, the idiots at Yahoo start talking as if the engine’s displacement has some sort of direct relationship to the number of cylinders it has.

If they knew anything about cars, they would know it is possible to get 645 HP from a small displacement engine, but you sacrifice torque. You either need to increase the displacement, or introduce forced induction. Moving on:

“...the V10 engine has about twice as many cylinders as it needs to create all 645 HP.” Now here’s a sentence that proves the author has no idea what he’s talking about. The most powerful 5-cylinder engine in a modern car is the 360 HP engine from the Audi TT-RS. And 360 hp is 285 HP less than the Viper ACR makes.

But the sentence said “...about twice as many cylinders...”, so lets give him the benefit of the doubt and try comparing 6-cylinder engines. The Porsche 911 Turbo S is the most powerful 6-cylinder available in a showroom today, but it only makes 560 HP, a full 85 less than the Viper ACR. Even the now discontinued GT2 RS only made 620 HP despite being boosted to infinity and beyond.


In other words, you need 8 cylinders to make the same amount of power as the Viper’s V10 makes. And I challenge anyone to name a single naturally aspirated V8 engine that makes 645 hp. In fact, the next naturally aspirated engine that makes more than 645 hp is a Ferrari V12. You need to buy a fucking $300,000 Ferrari FF before you get an engine with similar HP as the Viper ACR, and it is still down 97 lb ft of torque on the Viper.

In fact, there are only 4 cars that make 645hp+ horsepower with an engine displacement less than 6.2 liters (488 GTB, 675LT, P1, and 918 Spyder). In reality, the Viper’s 8.4L V10 is hardly overkill considering there isn’t a single other naturally aspirated engine, at any price, that can beat it on both HP and torque. Even if we include forced induction engines, there are only 7 that trump both the Viper’s hp/torque numbers: Hellcat twins, Z06, P1, 918 Spyder, LaFerrari, Veyron,

So Yahoo Autos, stop with your bullshit and leave the automotive journalism to people who actually know about cars. Might I suggest Patrick George.


Just make sure there are plenty of run-off zones at each corner.

Oh, and here’s the original Yahoo Autos Article.