Tuning firm Hennessey Performance is celebrating its 20th birthday and has created a limited run of twenty 20th Anniversary HPE650 Camaros to celebrate. The 655-hp, supercharged HPE650 Camaro upon which the run of cars is based isn’t the most radical Camaro in Hennessey’s catalog—it’s not even the most powerful supercharged model—but several special Anniversary goodies [...]