SEALY, Jan 30 — Hennessey Performance upgrades the 2016 Mercedes-Benz AMG GT S with its 4.0 Biturbo V8 engine for gains of 80+ rear wheel hp and rear wheel torque from 3,000-5,000 rpm.

The Hennessey HPE600 AMG GT S and other powerful vehicles are available from Mercedes-Benz of Sugar Land.

Want to learn how to make fast cars faster? Tuner School runs classes on chassis dyno cell and a quarter-mile dragstrip — all on the Hennessey Performance campus.

Screengrab from the YouTube Video from Hennessey Performance on dyno testing of the upgraded AMG GT S.