I guess the other question is how many miles on the Escalade? I think there's reduced power during the break in period for the 6.2L. At first my new 6.2L pickup didn't feel very fast, then at some point in the first 1k miles there was a noticeable increase in power when I was driving around. Now it feels like a hot rod pickup. I actually have some fun zipping around in it. If I recall it was the same when I test drove the Duramax Yukon, followed by the 6.2L Escalade. I was surprised to feel the Escalade underpowered. Thinking back, maybe it just needed to get past the break-in period.