Sporty car for about 18.00€

Hello, at the moment I have a BMW e46 320i, 6 cylinders, 2.2L and 170hp. In itself good car, it is also fun to drive, but wanted more performance. I like to drive cars, but I don’t know so well about it, that’s why I wanted to ask for advice here. So my budget is about 18.00€, I could go to about 20,000€, that I wanted to leave as a reserve, but if there is a snap, you can also surcharges. The car should be sporty, rather on acceleration than I don’t have any special requirements for the engine, except that it should be a gasoline engine. A nice sound is very welcome, but you shouldn’t make a car out of it, because the power is more important to me. Gears should switch quickly, if possible double-clutch or comparable fast. Quattro, xDrive or generally all-wheel drive, is also nice, but not a must, as long as there is enough power there. ung I don’t have, but parking aids, seat heating, sound systems Usw are nice to have, but also here, not necessarily decisive. So now it doesn’t have to be a luxury class. But should be a coupe or a limo. So far I have noticed the E92 335i, which should have really wums, with its 6 cylinders, 3L, 306 hp and two turbos. Also looks good and moves also in the price segment of 16-22t. The Audi a5 b8 2.0 TFSI and the a5 b8 3.2 FSI also look very good, jedo The two are noticeably slower than the BMW, at least according to technical data, but also cheaper. Can you say something about the models or do you have any other suggestions ? I am grateful for any idea