1,012 HP Hennessey Mammoth 6x6 Officially in Production, Costs North of $449,950
19 Apr 2022, 12:18 UTC · By: Sergiu Tudose / The Ram TRX-powered Mammoth 1000 6x6 is the biggest truck that Hennessey has ever created in the company’s 30-year history, hence the massive price tag