I think I would have looked closely at a “U” shaped rear arrangement. I already have a full width bed, having a California sliding seat with low level side units (and we appreciate that extra width). However, I initially wanted to keep the possibility of using the load area, and while I can move the bench seat forwards and backwards, it’s not really possible to remove it, so no real benefit over the U arrangement I preferred.
Oh, and mine is also a TSI, but my (Pendle) map is not really smooth enough through the revs with noticeable hesitation at certain rpm. I also have an LPG conversion with an 85 litre tank in the spare wheel bay for cheaper fuel costs.