Unfortunately, Chris Harris decided to compare the Audi model to the E 63 AMG's equivalent of a Victoria's Secret Angel sister – the CLS 63 AMG Shooting Brake.
On top of that, the CLS is the “standard” version, without the 4Matic all-wheel drive system, which at least would have brought it much closer as a competitor to the Ingolstadt wagon.
Don't worry, though, we don't hold any grudges, especially since we're fans of the man's video reviews and this example makes no exception. Plus, Chris Harris is based in the UK, where as far as we know the CLS 63 AMG Shooting Brake doesn't get the optional 4Matic system. We were just stating what should be obvious from the start of the video – it's not exactly a fair comparison.