A total of 4 upgrades are on offer, which will cost you in the range of $12,495 – $67,950, this is apart form the base price of approximately $52,000 for the regular 6.2L 8 generating 455 hp. Hennessey has been working on these upgrades since the last 1 year. They will come in the form of an Eaton supercharger along with custom CNC factory cylinder heads and a retuned engine control unit.
Hennessey has announced four various upgrade packages along with their prices which are inclusive of installation charges. The HPE600 Supercharged comes at a price of $12,495 offering 600 hp at 6,300 rpm while the HPE700 Supercharged costs $18,450 capable of 700 hp at 6,300 rpm. This is followed by HPE800 Twin-Turbo at a price of $54,950 offering 800 hp at 6,300 rpm while top of the lot is HPE1000 Twin-Turbo costing $67,950 and offering 1,000 hp at 6,300 rpm.
Hennessey has stated that these performance cars will be made available to customers by the end of this year.