M sport suspension
Thanks guys for your advice.
I tried at dealers today the f30 sport demo ,the ride was fine and comfortable,
Tech eng suggested buy m sport with adaptive suspension ( extra 515 ) gives option for comfort or firm . The 320d auto really moved well a big improvement own previous model m sport. Also they suggested I could consider the petrol version as my mileage will be less than 12k per year. Anyone out there compared the two options ? Diesel or petrol.