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Will we be getting any new fixtures (headlights, grilles, etc) in the new update?

Don't quote me on this, but it wasn't listed as one of the new update features. There might be though, and was just not significant enough to be mentioned/no one had asked it yet. But what we can be sure about is that It will come with 6 new car bodies, and we'll be able to mount engines into our vehicles, as long with selecting the transmission and ratios. Testing the car for different characteristics is also included. i.e. Acceleration 0-60, 1/4 mile time, etc.

Might be best to wait for Daffy or such to reply though.

While I'm not sure about grilles, I think there are a few more headlights, and of course wings! As you can see in the latest youtube vids I've posted