var dic = API.getVehicleValidMods((VehicleHash)sender.vehicle.model);
foreach (KeyValuePair<int, Dictionary<int, string>> kvp in dic)
{
    Dictionary<int, string> kvp2 = kvp.Value;
    foreach (KeyValuePair<int, string> kvp3 in kvp2)
    {
        API.consoleOutput("Key = {0}, Key = {1}, Value = {2}", kvp.Key, kvp3.Key, kvp3.Value);