How do you handle driving in an FPS?

How do you handle driving in an FPS?

The bane of a mouse/KB combo, the Swiftpoint doesn't really seem to support analog driving in an FPS environment, where you need your mouse down and sliding and to be using controls while driving.  For instance, nobody's going to be tilting to steer, sliding to aim, and clicking to fire a pistol, and doing it all accurately.

Has anybody else worked to implement analog steering through a means other than tilt?

I looked for a way to handle it; my wish was to map the fingertip keys so that pressing each would lean the joystick left at a certain rate, so you can fine-tune your turn to a certain arc, and reset it by clicking both together. I also considered using deep-clicks to lean thumbstick at a certain angle dependent on depth, giving me several increments of turn.

But it looks like thumbsticks can only be mapped to tilt, though, and there is no 'sticky' use that will leave the sticks tilted even if it were otherwise.  I would love to see any control able to be mapped to joystick controls, and I would also love to see the Z capable of selecting any axis for output, but to treat that axis as a slider. (Change the thumbstick position, instead of just lean it X% while pressed.)

As amazing as this piece of technology is, there is one big hole (in my opinion) in the capability of Mouse/KB versus a controller, and the Z cannot address it.