i have been using maya for about a year now and im still having problems.

So i baught a tutorial DVD and followed it to complete this car.

Its a fairly complex model for me and im still having poblems with it.
i keep getting gaps between the middle of the car and the outer edges. Can anybody help me?

please give some sort of critisism as i find that it helps.

Thank you very much

P.S. this is my first post and it is also the first time ive shown my work to anybody else