If you count cars: A Skoda Octavia PHEV.

I love Skoda. I love the Octavia. It was my fourth Octavia and I already ordered two more for my staff. PHEV would have been ideal for our use case.

Well,things didn't go as planned.

The whole car was bugged with software and hardware problems from day one - controll units randomly crapping out, when my dealer wanted to replace them he often had to get 5 units because four would be DOA and the one that worked kicked the bucket before I left his premises. Highlights:

• A steering wheel coming loose (only slightly,but still)
• The main display that shows your speed,etc. randomly shutting down. (Especially nice as I live close to Switzerland with their exorbitant speeding tickets)
• Randomly playing a screeching sound at full volume (especially nice at 3am or when on a highway)
• Randomly shutting of AC, some motor controls , etc.

It took 12 months for VW to take that steaming pile back, and only we sued them (Shortly before the hearing).

Second place goes to LG which sold me a OLED TV for 2k that randomly showed faulty pixel lines exactly 3 years and 3 days after I bought it (so it's out of the extended warranty programs as well). And when asked for a quote for the repair they had the audacity to ask for almost the new price for the TV back then, aka 150% of the current market value - without even looking at it first. Good way to make sure that I never buy LG anymore.