We have one & the torque is nice & linear plus they are a nice drive. But prefer petrol all the way & when the 330d starts you think you have a canal boat on your drive!!!
Why u changing and what do u want from the change. Ive had a 330d for 3 years. Brilliant car. Always wanted an impreza but 330d has always seemed too good to change. M5 ive fancied too but had cost n reliability worries. U looking at e46 330ds?