Titans are 17" and were originally fitted on '95 T-5R's. They were the very first set of oem Volvo wheels that I bought 10+ years ago to put on my 850 Platinum. I've owned many different wheel sets since then, love Volvo oem, plenty of choices. In fact, I have two mint sets sitting in my garage right now ... Pegs and Serapis
Looking at your other Volvo in the background I think I spy a set of Persus.