Z06 Corvette: Yuuuuuup.
64 Belvedere: Highly unexpected, infact I barely even knew what was special about that thing before doing a bit of a google (apparently, it's pretty much the Plymouth equivalent of a 64 Impala, complete some NASCAR victories under its belt). Probably one of my favourites due to it being such an oddball.
66 Nova, 68 Firebird, GTO Judge: All cool. Would've liked for them to not be FH4 repeats but what can you do
Lucid Air: Excellent choice of EV. Could be a fun one to build and drive.
Rossion Q1: Not sure if I missed this one or not since we've got the related Noble M400 in the game, but it remains a welcome return nonetheless.
Lincoln Continental: About time Forza Horizon got one of these. Another favourite of mine.
Saleen S7 LM: Hmmm. Not bad I guess but not sure what makes this special over the regular S7.
DeBerti Econoline: Not really interested in Deberti stuff, though this is atleast a cool car/van to use as a base. Might give it a shot.
Chevrolet Silverado: Surprised they went with this over the likes of the RAM TRX. Also, not sure why they opted for a Trail Boss model over the ZR2, seeing as the ZR2 is meant to be a F150 Raptor competitor. That being said, I still like it, 'bout time Forza added a Silverado - even if I personally would've preferred them to add the older SS model, though that's just me.
Czinger 21C: To be honest, this one might be another fav - it's a car I've always thought was just some 3D render of a fictional car (or some made-up Hot Wheels) but yeah it's a real thing. Could be fun to drive even if cars this fast isn't my usual cup of tea, not to mention the uniqueness factor to it (as well as the technology behind and inside it) is something I deeply appreciate.