Not only that, but doesn't spending $60,000 on a Volvo C70 entitle you to expect more reliability (or anything for that matter) than spending, say, $18,000 on a Nissan Versa? I dunno, I just thought I'd ask.... 
No. Reliability never increases as prices do. A four-banger Accord is more reliable than an Acura RL, if I recall correctly. Greater prices mean more mechanical complexity and greater drivetrain stresses, which in turn mean less reliability. The really reliable cars out there are very often econoboxes. Corollas, Yarises, those sorts of things. Your example of the Versais a great example. Does a Versa have a folding hardtop that could break? Is it turbocharged? Does it have heated power seats? All of these extras that make the C70 a nicer driving experience than a Versa are also potential reliability trouble spots.
Well, maybe so, but if I had that kind of money to spend on a car
, I would be inclined to go for a Japanese brand like Lexus or Infinity for the very reason that I would expect better-than-average reliability for my money. Last time I checked, equivalent models from these manufacturers have the same if not more features than the C70.
PS - Years ago, my brother-in-law had a turbocharged Chrysler (I don't remember the model, but it was expensive) with power heated seats and all the options including a power sunroof, and had very few problems with it. Around the same time his Dad had a Horizon with no options at all and it broke so often I was afraid to drive it. Go figure.
