The more obvious:
Jaguar XJ (6 cyl. if you want less trouble)
BMW CS (CSL way too expensive)
Now my list:
(don't hang and quarter me, it's getting a bit exotic now...)
With following list I always mean the early models!
Saab 900 Turbo
Audi Quattro
Audi 200
Toyota Crown (the classic Tokio taxi)
Toyota Celica
Toyota Supra (although every single one seems to have been fettled with...)
Honda Legend (should be a REAL bargain)
Lancia Fulvia (nearly as reliable as early XJ's

)
BMW 6-series (the one from the eighties)
Maserati Bi-Turbo (nowhere as reliable as early XJ's

)
Plymouth Barracuda (ok, I'll stop now, I'm getting silly - just mentioned the last one 'cause I love Nash Bridges...)
Alex. (Petrolhead and certified weirdo)