How are you going to realise the car?? Building it is probably out of the question.
What you could do is to model it for a computer simulation.
Example rFactor; this sim has a great physics engine and tyre model and there are some really great quality add-on tracks available.
The car shape is done as a 3D mesh (can be quite detailed), then the graphics are applied.
Apart from the phyiscs files, you can constrain vehicle parameters/tuning options to stop the thing becoming a ridiculous fantasy.
There is too much to describe in the physics files; but all the important stuff is there in great detail, you can even model the suspension geometry to get the camber curves/movement you want. Suspension can be conventional, push-rod or even with a third spring - ARB's of course. A fairly complex diff can be modelled (front or rear drive). Aero drag, downforce etc. etc. Lights and instruments if you want them. Different types of geabox. Also, engine torque curves, interia etc. etc.
Just about the only major missing thing is (for now
) the fact that a decent 4WD system with centre diff cannot be modelled.
Once the thing is built, you can prove the concept on real race tracks (Spa anyone?). Other game mods that replicate original race series can be fine tuned to produce lap times very close to real life.
Just a thought.............