What did the one on Belvederes look like in real life?
They look fine in real life on the TCR.
I was never keen on them when I ran them in my Clubsport as the rear spoiler made the car look very tall at the rear and needs 19” wheels to balance the visual profile out.
The TCR looks lower due to the small rear spoiler lip, the weird diffuser and the shape of the sculpted side skirts (plus front splitter) which makes the car look more squat than an Ed40.
Therefore the 18’s look perfectly good on it.
The long spokes of the Belvederes which run right to the rim make them look quite big too.
The only criticism I can make of the car running Belvederes applies to all of the factory 7.5J wheels on the mk7 which is they sit much too far into the arches, requiring spacers to look right.