Wheeled Vehicle Question

I have so far been very pleased with the responces that I recieve from the garagegames community and again are asking for assistance. I am having problems trying to put more then one vehicle in the game. I am using a modifed version of the car.cs file that came with the engine for every vehicle. The problem lies with this piece of code...

function WheeledVehicleData::create(%block)
{
%obj = new WheeledVehicle() {
dataBlock = %block;
};
return(%obj);
}

//-----------------------------------------------------------------------------

function WheeledVehicleData::onAdd(%this,%obj)
{



// Setup the car with some defaults tires & springs
for (%i = %obj.getWheelCount() - 1; %i >= 0; %i--) {
%obj.setWheelTire(%i,ATVwheel);
%obj.setWheelSpring(%i,ATVSpring);
%obj.setWheelPowered(%i,false);
}

// Steer front tires
%obj.setWheelSteering(0,1);
%obj.setWheelSteering(1,1);

// Only power the two rear wheels...
%obj.setWheelPowered(2,true);
%obj.setWheelPowered(3,true);
}

function WheeledVehicleData::onCollision(%this,%obj,%col,%vec,%speed)
{
// Collision with other objects, including items
}


The problem that I am having is that every vehicle in my game has different tires and springs but Torque calls WheeledVehicleData::onAdd of only one of the .cs files and thus makes only one Tire type in this case ATVwheel. I was wondering what I have to modify to make it possible to use multiple vehicles with different tires.

A seperate question that I had was How to make the camera free look while you are in the vehicle. Any help is more then appreciated.....