Is it possible to be able to use a command to change car restriction while on track?
If so, please tell me how.
                
            If so, please tell me how.
// HANDICAPS
// =========
// You can send a packet to add mass and restrict the intake on each car model
// The same restriction applies to all drivers using a particular car model
// This can be useful for creating multi class hosts
struct CarHCP // Car handicaps in 2 bytes - there is an array of these in the HCP (below)
{
    byte    H_Mass;        // 0 to 200 - added mass (kg)
    byte    H_TRes;        // 0 to  50 - intake restriction
};
struct IS_HCP // HandiCaPs
{
    byte    Size;        // 68
    byte    Type;        // ISP_HCP
    byte    ReqI;        // 0
    byte    Zero;
    CarHCP    Info[32];    // H_Mass and H_TRes for each car : XF GTI = 0 / XR GT = 1 etc
};