I don't know a single instance of someone active on the forums genuinely thinking either car was dead (as much as some wanted the Wendover to be), and the devs had/have made multiple statements about them both. The Wendover has had multiple official statements in the last 3 months or so alone... We all know the Vivace is the one that died.
I believe the effect shown in the strange video posted by Nadeox1 happens with concave mirrors. The image will appear to be flipped upside down until you reach the focal point, at which point it inverts. Exactly what happens in the video.
There is reflection on the ground I think. Maybe they are testing new reflections? Hard to tell since it's in so small resolution.
How about sound that is in the video? Did anyone try to speed it up or something to see if it isn't some engine or other kind of sound? Because that seems to be rather easy thing to miss, as we don't expect it whilst looking at visual "clues". Especially at 0:13 mark, as it sounds like engine revving.
You think we might get any new sounds? I’m not really sure what other sounds could be added, maybe the grinding sounds you hear on new cars when you slam on the brakes could be coming with the Vivace.
Background sounds in general are needed. Squeaks, squeals, rattles, etc... Probably misc. improvements as well.
Support for convertibles. It's weird how if you remove windows or the roof from your vehicle that you don't deal with excessive wind and road noise in the cockpit.