Mondeo ST220 I had always wanted one, test drove it enjoyed it bought it.
A week in the battery died, no big deal batteries die. Dealer replaced it. Still tainted the ownership experience a little.
I had come from a 2004 Volvo S60 which in comparison to the Mondeo had infinitely better build quality than the Mondeo, the Volvo was solid not a rattle in sight. The Mondeo however had all kinds of interior rattles subtle ones others didn't hear them I could and it would just get on my nerves.
The recaro seats I found uncomfortable after about 30 minutes of driving, i was on the larger side back then so probably just didn't really fit in them

I had been spoiled by the seats in the Volvo still to this day there has not been a comfier seat than those.
Then there is the power delivery, V6 sounds good but I missed the shove of turbo charged engine.
Fast forward 3 weeks in it developed a misfire so back to the dealer it went. I still had the Volvo at the time so hopped back into that, then i realised what a mistake I had made yes the Volvo was dull to drive, it had a horrific turning circle but it was so relaxing and comfortable and no rattles this more than make up for the dullness.
When i got the Mondeo back I decided after just 2 months of ownership to trade it in for a Mk5 Golf GTI, this is what i was after, it was well built no rattles, fun to drive, turbo charged, surprisingly comfortable for what it is. I had that for 4 years of trouble free motoring.