Focus RS

I was at the Ford dealership yesterday and by the way I looked at the Focus RS and sat on the Porbe. I have to say a cool car. But the seller said to me that you can’t do anything with this car tuning technology anymore. He said you wouldn’t even get other rims for this car, because they are exactly tuned to the special brake front, lowering it would not be possible, nor would it be possible to widen the track. Now I wanted to ask. He doesn’t know?