alfa 156 v6 test drive, only problems! totally disappointing

I wanted to buy an alfa 156 v6. then made a test drive, which could not have been more deterrent. it was a year of construction 98 with 70000 km. the seals were leaking, water dripped into the door. it squeaked while driving on both doors, the back flap and somewhere at the armature board. well, the alpha in the quality is not so special I was aware, but I was at least looking forward to the engine. but also there an absolute disappointment. until 4500 turn around ngen very low-transmittance, over it goes. after 10 km of test drive the engine has jerked wild. think times ignition problems. arrived again in the workshop I was told that the at alfa is normal. if he stands a week penetrates water into the ignition system because he is leaking and that leads to ignition dropouts. when I then asked how it stands with guarantee or guarantee the dealer told me that he would not give a guarantee to an alfa v6 because with the alfa constantly what breaks and that with the v6 the repairs would be too expensive. so sell only as a baser!!! as said bj.98. the brake discs were so warped that when braking almost the steering wheel flew from hand. so I am absolutely deterred. are all alfas so? have bought me now an audio a4 2.4 v6 bj. 98. with 2 years guarantee without problems. the engine goes despite 165 ps to 4500 u/min around worlds better than the alfa engine and also not much worse over it (vmax factory specification alfa 230, au di 228). moreover, it is much more economical (30 valves, 9.4 liters, I lie with very fast driving at 9.5), nothing clatters, fully galvanized and with perfect ergonomics and processing. don’t get me wrong, I’m really not an alpha opponent, in the opposite, but with what I’ve experienced is an audio around worlds better. what do you think about it?