Because 420 horsepower, roughly 6000 pounds, and a brick-like body aren’t recipe enough for terrible fuel economy, Hennessey Performance Engineering has unveiled its latest go-faster package, and it’s intended to beef up Cadillac’s already beefy 2015 Escalade with a huge increase in power._ Indeed, Hennessey’s HPE550 gear bumps the Escalade’s 6.2-liter V-8 from 420 horsepower […]

The rest of the story...
CarandDriver.com