My other car is a modified 5.0 Mustang Cadbury-olè, so I can't really tell what's acceptable or normal.There must be something wrong with your car, there’s no way in earth I’d ever call the Formentor noisy, whether it be on electric or petrol or in Cupra mode. I think you should go and drive another example for comparison.

But I still think my 310 Exhaust is too quiet

