Thanks guys. So I should focus on the following?

Tire size: either 195/65/15 or 195/60/15
Wheel size: 15x6.5"
Bolt Pattern: 5x108
Stud Size: 12x1.75 Bolt
Hub/Centre Bore: 65.1mm
Offset: High ET 43

Thanks for your reply Doyle.

Now I'm getting more confused, the 1999 Owner's Manual says the following:

Volvo recommends 185/65 R15 winter tires on 15" wheels on all front wheel drive S/V 70 models including models equipped with 16" or 17" wheels.

Source:
http://www.scribd.com/doc/62558115 ...

Hi all,

I am looking for a used winter tire package for my 1999 V70 GLT on Kijij. Have been doing some research for the past few days and I'm still not sure what is the correct spec for rim/wheel/tire?

Winter tire size: 195/60/R15 or 195/65/R15?
Bolt Pattern: 5x108 mm
Offset: 34-45 mm ?
Center ...