The rear lights are the same Jim hence why you can't see a difference. It's the headlights that are smoked on the TCR.
Are all TCR's supposed to have them or is this new along with the Akra exhaust? Was having a nosey on AT and here's a TCR vs GTI... 
It's in the price list from 01/04/19;-
'LED headlights with dynamic curve lighting and LED daytime running lights incorporating smoked lenses and red stripe.'
There is no mention of the Akrapovic exhaust in the same price list except as an option on the R, so it looks like they're supposed to be standard on all TCR's.
On the August Price list, it now states,
Akrapovič’ titanium sport exhaust system
with round twin tailpipes left and right
‘GTI TCR’ styling pack – uniquely shaped
front and rear bumpers and rear roof spoiler
LED headlights with dynamic curve
lighting and LED daytime running lights
incorporating smoked lenses and red stripe
Matt black door mirrors with integrated
indicators
Unique ‘GTI TCR’ badging
