What you need is to find your own style/design and go for it ignoring others, don't care how things have been done or what is popular or not, just do what you prefer and that will be best design, imo.
The rear resembles a Celica... at least that is what I said. (Has a very high sharp cutoff on the rear/side)
Put those two car pics together and you have this drawing . FXO should embody a very European style in my opinion, or else this concept just strikes me as Japanese made.