As fast as the regular Camaro ZL1 may be (actually, it's the fastest and most powerful series-production Camaro ever built), there's one company that believers there's always room for improvement: Hennessey Performance.
The Texas-based tuner offers four different packages for the 580hp Camaro ZL1 named HPE650, HPE700, HPE800 and HPE1000, with the numbers (approximately) representing the output of the car's 6.2-liter supercharged V8.
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