1999 Commodore.

Pros
Cheap to buy (bought mine for $10K and it was in perfect nick, 3 years ago)
Cheap to maintain/fix (Kmart Tyre & Auto, never stuffed it up) and most mechanics know how to fix it if something goes wrong
Cheap to repair in a bingle as parts are always available, including on long journeys if I'm away from home...
Can fit three car seats across the back (a bit squizzy but you can)
Easy on the fuel on long trips


Cons
Can be expensive to insure depending on where you live
3.8L V6 so chews the petrol on round-town trips
Not "special" so not necessarily 'noticed" (this could be a pro too)

For me the issues were: price, maintenance/repairs, fuel, insurance.