I'm new here and I don't know how it was before, but honestly I'm not into this design. I don't want to sound rude or something, for the record, just saying what I think.
The "solved puzzles" images are far too little compared to the others, probably a full size gif or something would be better if you want to show more than one car, but I think maintaining the same size is very important.
Other than that, the layout is a bit fuzzy, and doesn't really give you the idea of such a large and deep forum if you click on them.
To be completely honest, and not wanting to offend anyone, it's a bit amateurish.
That said, I came here trough google and landing directly on one of the pages from the forum, so I can't really give an idea of what the homepage told me the first time I came here.
Probably the fact that the single areas are not aligned spoils the rest, and the ad/link in the middle just interrupt the whole deal, it would be better positioned at the bottom of the list.
My 2 humble Italian cents, I liek the forum and that's what it's important
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