Hennessey has revealed the final evolution of its Mammoth 1000 pickup truck based on the Ram 1500 TRX platform. The 2024 model year is the last where Ram’s 1500 can be ordered with a V-8. An updated 2025 1500 has already been shown, and there’s no V-8 in sight, including for the high-performance TRX which will downsize to an inline-6 and be…