Am i wrong feeling like the new vehicles are three shades of useless due to costing 50% more points than they should? Am i missing something here? Compare to similar stat lines for razorbacks, ravegers, taurox ect. What gives?
I don't know about 50%, but each is about 20 points more than I would have hoped, and the Squigbuggy is closer to 40. Hard to say if Chapter Approved will bring them down, given the short time between the two releases, but one can hope. I do still think you can find uses for most of them (not the squigbuggy), but it's mostly niche and I think you'd be handicapping yourself if you took more than a few. Depending on your list, a few of the cheaper ones for the fast attack slots in a Brigade might make more sense then cheap Deffkoptas.
The Wartrike is also overpriced, but I expect it will still see the most use of the new vehicles by the nature of being a fast melee character without needing to get a FW model or convert up an index Warboss on bike. It's fairly solid on its own, as even with only S5 base, getting re-rolls to wound on top of the +2 strength as well as 6 attacks means it is still a hard hitter. I think it pays too much for its guns, which is a problem Orks often seem to have, but nonetheless, it's not bad.
As for the other "new" vehicles, the Gunwagon and Bonebreaker, I think the melee one will see some use, but without a decent gun worth firing twice, the Gunwagon will be left off the table. It simply isn't worth the points, and the loss of open-topped just makes the cost way too high, as you won't even be putting things in it. At least the Bonebreaker has some synergy with the Ramming Speed strategem, the boarding action one, and the ability to deliver a bunch of WS2+, Str 9, Ap-2, 2 damage attacks. It probably won't be super competitive, but I wouldn't be surprised to see a decent-sized GT won by an Ork player with one tellyporta-ing in.