I had one. The 2.6 has a few flaws to it...the biggest one being it has a "jet valve" in each combustion chamber (essentially making it a 12 valve motor). These jet valves are small, and are located between the intake and exhaust valves. It is this area where they will start hairline cracks, and eventually causing head failure. The fix to this is to use the 2.6 head that is found in the Dodge Caravan (they used the 2.6 as an optional motor until I think 1988, when the V6 came online) as they do not use the jet valves. When I pulled the head off of mine, all four chambers had cracks.
Next bad thing is the fuel injection. It uses a really messed up throttle body injection system, and acts just like a carburator in the sense that one injector is big (primary and always fires) and another small injector (secondary, works at about 2 grand on up). The injector connectors are always giving problems, and the fuel line to throttle body gaskets always leak. And the front-end design will wear out upper and lower ball joints really quick. Steering is the old-style recirculating ball type.
But these cars do have good points. They come with LSD'* stock, their intercoolers are already pretty big (though Volvo takes the prize on "my cooler is bigger than yours"), and are becoming quite rare. If you get this, look for a hood from an 83 Starion...these hoods are the only ones with built-in hood scoops that actually work, and will bolt onto any year StarQuest.
Hope this helps
EDIT: Urban legend states the name "Starion" came to be because Mitsubishi initally wanted to name it "Stallion" but there is no "L" sounding equivalent in the Japanese language (closest thing to them is "R"....so they would actually say "Godzirra" instead).
ANOTHER EDIT: These were world cars...they were everywhere from Austrailia to the UK, and a twist of irony- the U.*. spec cars got the 2.6 because in America "bigger is better"...everyone else got a much more reliable...and modable...2.0 liter. And there are conversion kits that allow you to put the DOHC 2.0 turbo in it.
Welcome, downwardly mobile yuppies, to the dawn of the Age of Nefarious.
1993 SSEi - FrankenJinx - dead and gone.
1994 SSE (136K strong) - 180* t-stat,HD alternator, most unequipped SSE on the club, XM radio, Kenwood CD/MP3.
2006 Chevy Malibu Maxx LTZ - Custom 2.25" manifold-back exhaust w/FM-80. Probably the only Maxx with this system.