From what I saw, the '23 GLC weighs about 4,200 pounds, and the '24 GLE is about 4,900. That may be the difference in performance as I don't recall when we drove the GLC thinking there was particular deficiency in the engine. But, again, when we first pulled put of the dealership we thought ....yea, this has OK power. But then we got on the freeway, floored it and there was engine noise, but not a whole lot going on. That was my big concern as I had read that about the GLE350. Handling seemed 'luxurious' meaning not sporty or tight. just OK. And the stains/marks on the B pillar, I would assume were from either a previous test drive, or the prep people after it got to the dealership. We have only had one light interior in our last few cars and this kind of reminded us of how dirty that tan interior got....black is usually the best choice to avoid that (although that light beige or whatever MB calls it, together with the black parts were great looking in the GLE....new. I really wanted to like it but we suffered through a Land Rover when Ford owned it) that had a V6 that was terrible...I think it was a Ford Explorer V6 dropped into a Land Rover that weighed significantly more, and it struggled. People have commented to get the GLE450 and I can see why. Of note is that the 2024 BMW X5 starts out with their terrific straight 6 and I can why.