Unless you are lucky to find one that could be delivered directly to a dealership near the factory in Germany (unlikely to get a discount), maybe try dealerships in Ireland or Cyprus (which is where my Mazda3 was originally shipped to from Japan, then [unsold] on to the UK where I bought it [new] from Motorpoint).

To be honest, you may stand a better chance in getting a discount (if you include the cost of bring the car back from wherever abroad) by just looking at sites like Motorpoint (you still can buy new [registered to keep sales figures up a dealerships but zero/delivery mileage only] or low mileage [less than 5k, some even less than 1k] second-hand ones) or the 'fleet buy' sites that are featured on HJ's 'Cars for Sale' section.