Wow, nice work there man. That's one thing I love about unreal engine, it is such a good renderer and makes everything look nice :P
Just like crysis levels can be bad in design but still look awesome.
That truck looks fantastic, and I really have no criticism on it other than the cabin of the truck which you could give some detail.
I can't explain what would be done, but look at left 4 dead's vehicles.
You can't really flash a light inside to see the interior , but the glass is see through and everything inside is just dark.
It may not be the most realistic effect, but it is more realistic than a window that can't be seen through at all
