Sponge packing
Hey pr0xy, are you sure the rattle is from the gearbox/clutch. I too have a new Cupra and noticed a rattle. But I had a look under the dashboard (looking up from the foot well to where the tops of the pedals are) and saw a plastic bracket rubbing on the bodywork. I adjusted it and the rattle disappeared. It's back again so the bracket must have moved back. I've got some high density sponge to pack it out permanently this time so we'll see what happens. I'll try and do it tomorrow (Sunday) and take some pics.
Anyone else noticed sponge wrapped in clear plastic stuffed into various places in the engine bay. Obviously, they're there to dampen out noises. Or are they?