The 1998 Jaguar XK8 arrived as a refined grand touring coupe and convertible, blending modern Jaguar luxury with the long-hood, rear-drive character buyers expected from the marque in the late 1990s. It was a sophisticated car for smooth highway use, confident road manners, and elegant everyday drivability rather than stripped-down vintage minimalism. For this exact model, the primary fitment is a 245/50R17 radial tire, which places tire selection squarely around proper modern radial sizing and 17-inch wheel compatibility. The key decision is usually not choosing between multiple factory sizes, but selecting the right tire within that size and confirming the wheel and suspension setup on the car today.
Which Tire Size Is Right for The 1998 Jaguar XK8
The 1998 Jaguar XK8 uses one primary tire size: 245/50R17, a radial tire built for a 17-inch rim. The XK8 Base uses that same size, so the main question is not which size fits, but whether the tire matches the car's current wheel setup, intended road use, and the owner's priorities for ride, appearance, and everyday drivability.
A 245/50R17 size uses a 245-millimeter nominal section width, a 50-series aspect ratio, radial construction, and a 17-inch rim diameter. On the 1998 Jaguar XK8, that modern metric radial format suits the car's late-1990s grand touring character and keeps the selection process centered on proper wheel compatibility rather than vintage sizing conversion. This size is best approached as a fitment-first choice, with attention given to tire design, handling intent, and how the car is actually driven. It is also wise to confirm that the car still carries the correct 17-inch wheels and has not been altered with aftermarket wheel or suspension changes.
Sub-model fitment is straightforward for the 1998 Jaguar XK8. The covered XK8 sub-model uses the same 245/50R17 radial tire size, so the focus stays on confirming the actual wheel setup and choosing the right tire within that fitment.
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1998 Jaguar XK8 Base
The 1998 Jaguar XK8 Base uses the 245/50R17 radial tire size. That makes tire selection more about choosing the right modern radial for the car's current condition and use, while confirming that the wheels remain the correct 17-inch specification.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Frequently Asked Questions
Owners of a 1998 Jaguar XK8 usually want clear answers on 245/50R17 fitment, 17-inch wheel compatibility, modern radial selection, and what to inspect before putting a grand touring Jaguar back on the road.
Tire Size & Fitment
What tire size fits a 1998 Jaguar XK8?
The 1998 Jaguar XK8 uses a 245/50R17 radial tire. That is the primary fitment for this model, and the XK8 Base uses the same size, so there is no split between multiple documented factory tire sizes within the covered sub-model fitment here.
That means the first step is confirming that the car still has the correct 17-inch wheels and has not been changed with aftermarket wheels or suspension modifications. Once that is settled, the decision becomes choosing the right tire within the 245/50R17 size for the car's present use, ride expectations, and overall setup.
What size rim does a 1998 Jaguar XK8 use?
The 1998 Jaguar XK8 uses a 17-inch rim with its 245/50R17 tire size. In that size designation, the final number, 17, identifies the wheel diameter the tire is built to mount on, so wheel diameter confirmation is straightforward.
Rim diameter is only one part of fitment, however. A car that has been changed over the years may also have different wheel width or offset, and either change can affect how a 245/50R17 tire sits in the wheel opening. Clearance at the fenders and steering components should always be checked before replacement.
Does the 1998 Jaguar XK8 Base use the same tire size?
Yes. The 1998 Jaguar XK8 Base uses the same 245/50R17 radial tire size as the model-level fitment. That keeps size selection simple and avoids the need to sort through multiple primary fitments for the covered sub-model.
Even with shared fitment, an individual car may differ from original wheel and suspension specifications after years of ownership. A quick check of the actual wheel diameter and the tire size currently on the car helps prevent ordering around an assumption. It is also a good time to inspect for rubbing marks, uneven wear, or previous clearance issues.
Choosing the Right Tire
What should I consider when choosing a 245/50R17 tire for a 1998 Jaguar XK8?
Start with the correct size and construction: the 1998 Jaguar XK8 uses a 245/50R17 radial on a 17-inch rim. After that, the real comparison is between tires that suit the car's grand touring role, the condition of the vehicle, and whether it sees occasional collector use or more regular road miles.
Wheel compatibility should be confirmed before focusing on tread or brand preference, especially if the Jaguar has aftermarket wheels. It also helps to think about how you want the car to feel on the road, since a low-use garage-kept XK8 and a highway-driven example may call for different priorities in ride comfort, response, and overall presentation.
How do I choose between the available 245/50R17 tires for a 1998 Jaguar XK8?
Choose between 245/50R17 tires by first keeping the fitment correct, then narrowing the options to the type of driving the 1998 Jaguar XK8 actually sees. A grand touring Jaguar benefits from a tire that matches the car's balance of comfort, control, and composed road manners rather than a purely appearance-driven decision.
It is smart to compare wheel compatibility, construction details, and the age and condition of the rest of the chassis at the same time. A fresh tire cannot compensate for worn suspension parts, poor alignment, or old bushings. Looking at the whole setup usually leads to a better result than choosing on size alone.
What should matter most when selecting tires for a 1998 Jaguar XK8 used mainly for road driving?
For a road-driven 1998 Jaguar XK8, the most important factors are staying with the correct 245/50R17 radial size, confirming the 17-inch wheels, and choosing a tire that suits steady touring use. The car's character favors a balanced approach rather than an oversized or mismatched setup.
Once fitment is confirmed, consider how often the car is driven and how it is stored. A Jaguar that spends long periods parked may need just as much attention to tire age and condition as to tread depth. Smooth ride quality, consistent handling, and proper clearance matter more than chasing a tire that only looks aggressive.
Restoration & Appearance
Which tire should I choose for a period-style 1998 Jaguar XK8?
A period-style 1998 Jaguar XK8 should still begin with the correct 245/50R17 radial size on the proper 17-inch rim. Because this is a late-1990s luxury grand touring car, the appearance goal is usually a clean, appropriately modern presentation that suits the car's original era rather than a vintage bias-ply look.
Appearance should stay secondary to proper fitment, wheel compatibility, and the condition of the chassis. If originality matters at a very detailed level, owner literature, marque-club references, and vehicle-specific history are worth checking before making a final cosmetic choice. That approach helps keep the tire selection visually appropriate without guessing.
Does correct tire fitment matter for a 1998 Jaguar XK8 restoration?
Yes, correct tire fitment matters because the 1998 Jaguar XK8 was designed around a specific modern radial size and wheel diameter. Using the proper 245/50R17 format helps preserve the car's intended stance, wheel-to-tire relationship, and overall visual balance during a restoration-oriented project.
Fitment also affects how complete and coherent the finished car feels on the road. A wheel or tire package that strays from the intended sizing can change the look of the car and create unnecessary clearance or handling concerns. Careful confirmation of the wheel setup is just as important as choosing paint, trim, or interior details.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1998 Jaguar XK8?
Yes. A 1998 Jaguar XK8 may still call for a 245/50R17 radial tire, but aftermarket wheels, altered offsets, suspension changes, or lowering can all affect whether that size works properly on the car as it sits today. Fitment can change even when the nominal tire size remains the same.
A close look at wheel diameter, wheel width, and visible clearance around the fenders and steering components is worthwhile before replacement. Signs of rubbing on inner liners or suspension parts should not be ignored. Any modified XK8 benefits from a hands-on check rather than relying on the original fitment alone.
What should I inspect before driving a 1998 Jaguar XK8 on new tires?
Before driving a 1998 Jaguar XK8 on new tires, inspect the wheels for damage, verify the tire size is 245/50R17, and make sure the tires are mounted on the proper 17-inch rims. It is also wise to check alignment, suspension wear, and any signs that the old tires rubbed or wore unevenly.
A fresh set of tires works best when the rest of the car is ready for road use. Look over tire pressure, valve stems, tread seating after installation, and the condition of bushings, shocks, and steering components. A short initial drive followed by another visual inspection can catch issues before they become larger problems.
How often should tires on a 1998 Jaguar XK8 be inspected?
Tires on a 1998 Jaguar XK8 should be inspected regularly, especially on a car that sees limited seasonal or collector use. Tread depth matters, but age, sidewall condition, air retention, and any signs of cracking or bulging are just as important on a grand touring car that may spend long periods parked.
A quick visual check before driving and a more careful inspection at routine service intervals is a sensible pattern. Storage conditions also matter, since prolonged exposure to heat, sunlight, and ozone can shorten tire life even when mileage stays low. Tires that look acceptable at a glance may still deserve closer attention before a longer trip.
