Lexus IS 250 – Basic Questions

Good evening, I have a few basic questions about the Lexus IS 250 times. There are the Luxury Line version and the Sport version. Both are separate packages. So I like the Luxury equipment quite well, it has some things that the Sport version does not have: among other things blue illuminated entry rails with the Lexus lettering, electric roller, center tunnel made of wood. I like that very well and in combination with light leather makes a great impression. The Sport version, however, has fine 18 inch wheels and aluminium pedals. That can be retrofitted to the luxury version for the sake of necessity. Or? But now the decisive thing: the translation in the Sport version is more splashy, in other words, you get ahead faster, isn’t it? Does this mean that this transmission translation really only exists for the Sport? I have already read many times that the Sport version is not so comfortable, i.e. quite hard – it scares off bits!