The interesting part is that the sound is exactly what the John Cooper Works MINI's sound like. That car is essentially a "stock" JCW MINI with a cage and brake cooling ducts in place of the fog lamps and slightly upgraded suspension I think. No other real "goodies".
About the mirror... in regular stage rallies, drivers with on-board cameras are encouraged to remove their central rear-view mirrors. But that's not a reasonable request at Targa where passing is common.
Take a look at the guages. Normally, they would be round, but on the video they are a vertical oblong, which tells me the tapes were shot widescreen 16:9 and squeezed into a 4:3 aspect ratio box for the internet. The real thing will look even faster and cooler! Nice driving Jim Kenzie.