The Q4 is a proper torsen 4WD system (ie. constant) with a rear bias - it can go 70/30 split in either direction though. Similar I believe to what you'll find in an S4/RS4 rather than a haldex (electronic) you'd find in other modern quattro audi's etc.
If I was going for a FWD 3.2 V6 Alfa, I'd look towards a GT or 147/156 GTA with the venerable Busso V6 rather than the unloved GM lump. Not that there's anything wrong with the GM lump, but its not as pretty, charateristic or as well known when things go wrong. Maybe thats an itch I need to scratch.
Also, you'd be lucky to see anywhere near 25mpg with any decent use of the throttle. Over 30k miles, I averaged around 17mpg with about 50/50 motorway/town driving. Typically down to 11mpg or lower on short runs.
With 9k to spend, I'd have an older but well loved Brera Q4 for around 6-7k and spend the difference on suspension, Brera S wheels, brake improvements and a wizard exhaust (even free flowing exhaust manifolds budget permitting). Still not an Elise, but not a bad car (although, you still wouldn't see which way the M3 went!)
Free whenever mate - although the Brera is living in Suffolk rather than London at the moment.