Baseline (Widescreen) Solution & Issues
In-game resolution setting is limited to a handful of hard-coded resolutions: 800x600, 1024x768, 1280x720, 1280x1024, 1366x768, 1680x1050, 1920x1080.
However the game will always start at your current desktop resolution. Apparently this setting mostly controls the pixel count of 3D rendering.
Screen change is 16:9 anamorphic (letterboxed) by default, but 16:10 and 15:9 can be fixed to fullscreen/Hor+:
-make sure desktop resolution is set to the desired game resolution.
-run the game and adjust in-game resolution to 1680x1050, press Esc to apply.
The game should now use the full screen height.
This works for all 16:10 and 15:9 resolutions. Non-widescreen on the other hand is always letterboxed.
Ultra/Super-Wide (21:9/32:9) Specific Solution & Issues
Eyefinity / Surround Specific Solution & Issues
Unsupported. Viewport is always Vert-.
To play on a single screen you must set your desktop to single-screen before launching the game.
Interestingly the FOV of menu backdrops and cut-scenes is very easy to edit:
C:\Program Files (x86)\Nemesys Games\Ignite\levels
Open .nml files with a text editor and adjust all fov= values to your liking.
Unfortunately the race camera's FOV is not stored there, so it's quite useless really.
4k UHD Specific Solution & Issues