V8 Vantage
R8 V8
Bentley
That would be my list. You've had the Maserati already, so you should know if you want it.
The V8 Vantage is brilliant.
The boot is also cavernous, so despite its small size it's actually very usable.
It is the perfect blend between sports and GT.
Build quality is great. It's a very nice place to sit.
Bags of character.
It is an absolutely classic design.
Aston Martin Works (dealership) is simply the best place you can take an Aston, however, they have fixed price servicing and don't bend you over. Aside from that, there is a decent number of independents.
I would get it over a DB9 as I found the DB9 a bit too big and there's a lot of weight upfront.
Keep the entire exhaust system stock, but replace the cats with 200 cell race cats (pricey but worth the money)
You can get a remote to operate the exhaust flaps (cheap)
It will then sound like this, and when you want it to
R8 V8
If you're happy with it being an Audi.
If you're happy with the interior.
There's simply nothing better on your list.
I got in it, it was so confidence inspiring that within 15mins, I was going very quickly!
The handling and grip are sublime.
Bentley
It's a luxury cruiser that can go very fast.
But, do your research on issues, costs and fixes.
Many seem to say they're expensive to run and fix. However, Maserati have a very similar reputation to Bentley, in terms of costs of running, yet we've all had those and still have food to eat!
Good luck