Usually average, the '07 will be softer than the '86, but that goes without saying.
Here's the thing though; it not only depends on brand but vehicle, model, and year. It's tough to nail anything down really. I mean, generally if I see a black BMW I know it'll be soft, but that's not 100%. In "general* a Porsche will be easy to work on, soft but not too soft, but again...not always. Black CGT = ouch so soft. So I guess what I am trying to say is it's tough to say.
With a PC I think *in general* the cars you are going to want to watch out for are ceramiclear mercedes, VWs older than 2006, Audi's older then 2006, Corvettes (in general, but mostly C4/C5)... I think that's about it, some other cars might cause problems, but they would likely be anomalies (like my car, for example, it would destroy a PC).