The Racetech floor coverings were like bathroom floor tiles in a chequerplate pattern. I didn't change them but they were utterly shit and anyone with an RT should have put in proper mats like the ST ones. Easy to add.
The RT alcantara felt much higher quality than the thin leather on the ST seats so I always thought it was preferable. Lack of the front speakers seemed a shame until I noticed how much I kicked the area where they'd be mounted on an ST