Video: 1000bhp Hennessey Exorcist takes to the dyno

John Hennessey is not one to stand idly by while someone – anyone – builds a more powerful car than him.

Which is why before Dodge even revealed the Demon, he gave us the Exorcist (get it?) – a Camaro ZL1 with nigh-on 1000bhp from its modified, supercharged V8. Equipped with the optional drag radials, John claims 0-60mph in less than three seconds and a quarter-mile in less than ten seconds. And this is what it looks (and sounds) like on a dyno, where it puts down 959 rear-wheel horsepower and makes many very interesting noises. All of them excellent. 

The Exorcist comes as a ten-speed auto or six-speed manual, unlike the Demon which is auto only. This one's the latter. The former adds $9,950 to the $55,000 conversion. If you don't want to go to the trouble of supplying your own donor ZL1, Hennessey will sell you the whole thing for $119,000. Dodge expects the Demon to come in at less than $100k - it does 0-60 in a frankly unbelieveable 2.3 seconds and is said to run a quarter-mile in 9.65 seconds.

Read more about the Demon here, and the Exorcist here.