On paper, a race against a Japanese buzzsaw called the Cadillac Escalade SUV and the ’Godzilla’ Nissan GT-R, doesn’t seem like a fair fight, especially when you consider that the ’fight’ is actually a 0-60 mph test to see which vehicle can hit the mark first. On one end, you have the Japanese buzzsaw called the Nissan GT-R, a car that has earned the nickname, ’Godzilla’. Can a three-ton SUV whose hulking mass is enough to drag itself down compete against the faster GT-R? Hennessey has made sure of it.

This mismatch was given a fair shake by the folks over at Hennessey, which gave the Escalade an HPE1000 performance upgrade, getting the 6,000lb SUV’s 6.2L engine a total of 1008bhp at 5,900rpm and 967 lb-ft of torque at 3,700 rpm. This was done with a forged & balanced 427 cid LSX engine, high flow cylinder heads, a Hennessey HPE1000 camshaft, an intake manifold upgrade, upgraded fuel injectors, an upgraded fuel system (pump, lines, and Rails), twin ball bearing turbochargers, and much more.[...]

Source: topspeed Tuning