Question: What would your recommendation be for a 1968 Jaguar S-type with standard wire wheels
Answer: I would suggest that the best tyre for an S- type Jaguar would 185VR15 PIRELLI CINTURATO ™ CA67
There is another excellent tyre for these Jaguar saloons such as the S-type which is the Michelin XAS 180HR15. This makes the steering nice and light, but from memory I think an S type has power steering
If you are interested in our views on the options of tyres for your S-type, you might find this short film I made about tyres for a MK2 Jag.