but in reality, won't the new smaller diffuser, give less downforce ? i knwo the rear diffuser is supposed to work at 80mph, but if you make it smaller like renault done, wont it just loose the downforce, and airflow from under the car, and the cup racers, they don't really need the rear diffuser as they have the top spoiler. like other person said they have made all the clio cup ones look like clio 200 models by just swapping the parts, as a sales gimic i reckon