all depends what you want to do with it mate
lux is the best as it has air con and sunrrof, they come in big and small turbo guise
big turbo is webber marreli fuelin with t3, small turbo is ford eec fuelin with t25 turbo. spin up faster so a little quicker but the later is hard to tune above 320bhp cos of the ecu.
motorsport is the standard bare car no air con or sunroof its a base model