I think the 340i is only rear wheel drive, you need to get the 335D X Drive to go all wheel drive - however feel free to correct me if I am wrong.
Another option from the Audi stable could be the S4 (Chris Harris mapped his to near RS4 levels of performance with a Revo re-map). Definitely ticks the sleeper box for sitting outside and would be like a standard A4 if you ditch the chrome mirrors.
Another alternative could be S5 (coupe or sportback if you want more practicalities).
George