Car graphics config

[fudje]

So..., I just put together some stuff that gives the option of specifying a quadrilateral frame for suspension (for, eg, double wishbone setups). This would make it possible, though not necessary, to have something like this in a (last I checked, wheel) section:

Code:

suspension = quad
position = -0.69, 1.28, -0.45
hinge-upper = -0.35, 1.28, -0.07
hinge-lower = -0.28, 1.26, -0.44
mount-upper = -0.64, 1.30, -0.37
mount-lower = -0.65, 1.26, -0.56

Does this seem reasonable?