Hennessey Performance are well known for taking already strong cars and making them even stronger and their latest project does not differ to this. Starting with the Jaguar F-Type R Coupe, which has a supercharged 5.0-litre V8, they pump up the output of this thunderous machine to 623 hp. This means that it can now hit 100 km/h in just 3.5 seconds and a quarter-mile time of just 11.4 seconds. They achieved this by adding some custom software, intercooler upgrades, supercharger pulley upgrade and then the usual tuning done on the dyno. What makes this package even better is that Hennessey are offering a 3 year, 36000 mile warranty on all modifications so as far as tuning goes, this is one of the safest options out there. Enjoy the video and mostly the sound of the epic Jaguar F-Type R Coupe HPE600.