I recently realized the tires on my 4.5 are approaching 15 years of age. I have owned the car for a little over a year, but per the records that came with the car it appears these tires have less than 3000 miles on them. Minimal thread-wear and no dry rot as far as I can tell. Always stored in garage, dry climate.

Is it still OK/safe to drive on tires of this age? If not, what tires do you recommend for the 4.5 w108? I assume it would be hard to find thin-striped white walls nowadays?

Thanks in advance for any insights.