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You'll struggle to get something fun with not terrible mpg in that price range that isn't horribly unreliable. E46 330i is a good shout as well as an E91 325i.
The other issue is that if you're mostly doing motorway, an n/a 200-230bhp estate after a 320d will feel annoying. You might have a different experience, but to me, I don't want to be working the gearbox just to accelerate from 50 back up to 70 on the motorway, I just want to press the accelerator and for it to happen.
A 330i or N52 325i will be more engaging off the motorway but they won't give you thrills on the commute or motorway based long journeys.
Absolutely not.
Got a budget in mind?