Another vote for G4S, because you already has a Mongoose, G4S will not be a whole new car for you even though it is much improved. your Mongoose can be kept as parts for G4S without buying new spare parts.
the car is truely durable. my user name tell you who I am yet I can't break anything ever since I get the car few months ago ( it is a running car, not on shlef
) the car is no doubts a performer and easy to drive. i think that is why I don't destroy it every 2 weekend