172 cup is the faster and the original and it weighs less which is what they set out to do.The 182 was a blatent marketing exercise and some numptys actually fell for it
The 182 cup was a cup price cut spec 182 with the cup packs as standard it had to keep abs for the EU laws and it sold well. I don't understand why you think its a marketing exerscise all cars are at th end of the day.