I've been looking out for a rear seat to add to my mk2 gt6, and then two come along at the same time (on eBay this week). Funnily enough, the black one is already up to £128, but the tan one is still at 99p. Are they really worth it? I've got two young kids who love to sit in the front, strapped in their kid chairs, and having a back seat would be marvelous until they get too big. But without the option of rear seat belts, I'm not sure I'd be comfortable with them riding in the back. The GT6 is not the family car, so the rear seat would be nice to have, but not essential. What's the verdict? Are they really worth it? Can an adult use it? Felix