Just played for the first time. Loved both 2048 and HD Fury in their previous guises.
My first thought was that it wasn't quite as graphically impressive as I thought - HD Fury already had a super-clean IQ, but now the fact that the lighting is super basic really marks it out as a last gen game. Once you get over that, though, it's still a beauty. I just loved the art style used from the ships to the transparent tracks to the corporate logos.
I do think that 2048 has lost a little bit in the upgrade, though. The whole point of it on Vita was the original, more gritty anti-grav racing series - a blend of the normal industrial and the futuristic. On the Vita in low-res, that graininess and grittiness shone through. Felt like the series had really gone back to the past. With the 4k upgrade, that sense of a grimier, less futuristic series has been lost a bit. Nitpicking for sure, and there was no way to avoid this probably. But the tracks 'feel' different to me in terms of tone in this newer presentation. HD Fury is totally unaffected by this, of course. Overall it looks like a fabulous port job.
I do wish you didn't have to slog through some class C races - so slow! Same with Zone, I wish you started on Zone 20.
Also, I just did the first Zone race in 2048 and died on zone 59. Why do I have the terrible feeling that zone 60 was the elite pass mark?