Audio doesn't match up with video.
Well, you have to think that the "muscle car" class is a bit....well...slim with choices.
The 5.0 GT probably wasn't released yet when this was filmed, and they already did an episode with a challenger(that also had the ZR1 and the CTS-V which they also called muscle cars), plus i'm almost certain the challenger isn't sold in the UK.
What else to compare it against? Something else with a 6.2L V8 that is brand new to them.