The 1985 Pontiac Grand Prix belongs to the last rear-wheel-drive chapter of Pontiac’s mid-size personal luxury coupes, a period when style, road manners, and trim details mattered as much as outright performance. For owners today, tire choice plays a big role in preserving that character. This Grand Prix uses 14-inch radial fitments in either 195/75R14 or 205/70R14, depending on the exact sub-model and wheel setup. Available choices range from traditional whitewall styles to redline, dual redline, raised white letter, and blackwall radials from several well-known brands. The key is matching the correct size first, then choosing the look and driving presentation that best suits the car.
Which Tire Size Is Right for The 1985 Pontiac Grand Prix
The 1985 Pontiac Grand Prix uses two primary tire sizes, and both are radial tires built for 14-inch rims. Because some sub-models use one size while others can use either, the first step is confirming the exact trim and wheel setup on the car before comparing sidewall styles, tire series, and brand options within the correct size.
Fit(s): Base, LE, LE w/aluminum wheels, and w/aluminum wheels
Construction: Radial|Rim: 14 in
195/75R14 is a metric radial size in which 195 identifies the nominal section width in millimeters, 75 is the aspect ratio, R indicates radial construction, and 14 is the wheel diameter in inches. On the 1985 Pontiac Grand Prix, this size supports a more traditional full-profile radial presentation on the proper 14-inch rim. Available choices include Coker Classic, Tornel, Maxxis, and Travelstar, with wide whitewall and narrow whitewall sidewall treatments across several tire series. This size is worth considering when the car’s trim and wheel combination call for it and the goal is a period-style look with modern radial construction.
Fit(s): Base, Brougham, Brougham w/aluminum wheels, LE, LE w/aluminum wheels, and w/aluminum wheels
Construction: Radial|Rim: 14 in
205/70R14 is also a metric radial size, using a 205-millimeter nominal section width, a 70-series profile, radial construction, and a 14-inch rim diameter. For the 1985 Pontiac Grand Prix, it is the broader of the two primary fitments and appears across several sub-model applications. Product choices are especially varied here, including Maxxis, BFGoodrich, and Michelin options with narrow whitewall, redline, dual redline, raised white letter, and blackwall styling. This size makes sense when the car is equipped for 205/70R14 and the decision shifts from fitment to the appearance and tire character that best match the build.
Sub-model fitment matters on the 1985 Pontiac Grand Prix because some versions are tied to one tire size while others can be equipped with either of the two 14-inch radial sizes. Checking the exact trim name and wheel setup helps narrow the choice before comparing brands, sidewall styles, and tire series.
1
1985 Pontiac Grand Prix Base
The 1985 Pontiac Grand Prix Base can use either of the two primary 14-inch radial sizes. That means the selection process starts with confirming the wheel setup already on the car, then choosing the sidewall treatment and tire series that best suit the car’s appearance and use.
The 1985 Pontiac Grand Prix Brougham uses the 205/70R14 radial fitment. Tire selection then becomes a matter of choosing among the available whitewall, redline, raised white letter, or blackwall options while keeping wheel compatibility and the car’s intended presentation in mind.
1985 Pontiac Grand Prix Brougham w/aluminum wheels
The 1985 Pontiac Grand Prix Brougham w/aluminum wheels also uses 205/70R14 radial tires. With size already defined, the buyer can focus on whether a traditional whitewall, sportier raised white letter look, or a restoration-oriented redline style best fits the car.
The 1985 Pontiac Grand Prix LE can use either 195/75R14 or 205/70R14 on a 14-inch rim. Verifying the wheels currently on the car is the important first step, since that determines whether the next decision is centered on whitewall styling or the broader assortment available in 205/70R14.
The 1985 Pontiac Grand Prix LE w/aluminum wheels can be fitted with either of the two primary radial sizes. Once the actual wheel and existing tire setup are confirmed, the choice shifts to brand, sidewall appearance, and whether a more traditional or sport-oriented visual style is preferred.
The 1985 Pontiac Grand Prix w/aluminum wheels can use both 195/75R14 and 205/70R14 radial tires. Because either size may be present, the practical move is to confirm what is on the car now before selecting among the available whitewall, redline, blackwall, or raised white letter options.
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.
Best 1985 Pontiac Grand Prix Tires for Sale
Available 1985 Pontiac Grand Prix tires center on 14-inch radial choices from Coker Classic, Tornel, Maxxis, BFGoodrich, Michelin, and Travelstar. Depending on size, the product grid includes wide whitewall, narrow whitewall, redline, dual redline, raised white letter, and blackwall styles across several distinct tire series.
Showing 6 of 10
Radial Tires
Coker Classic Star Series | 2.25 Inch Whitewall | 195/75R14
Common 1985 Pontiac Grand Prix tire questions usually come down to identifying the right 14-inch size for the exact sub-model, then choosing among radial sidewall styles, brands, and restoration-minded appearance options.
Tire Size & Fitment
What tire size fits a 1985 Pontiac Grand Prix?
A 1985 Pontiac Grand Prix uses either 195/75R14 or 205/70R14, and both are radial tire sizes for 14-inch wheels. The exact size depends on the sub-model and wheel setup, with some versions using only 205/70R14 while others can be equipped with either of the two sizes.
That makes identification more important than jumping straight into brand or sidewall style. Check the exact trim name, confirm the wheel diameter, and compare the size already mounted on the car before selecting a replacement, especially if the Grand Prix has changed wheels at some point in its life.
What size rim does a 1985 Pontiac Grand Prix use?
The primary tire fitments for the 1985 Pontiac Grand Prix are built around a 14-inch rim diameter. Both 195/75R14 and 205/70R14 use that same wheel diameter, so the main fitment question is not rim diameter versus another diameter, but which of the two radial sizes belongs on the specific car.
Wheel diameter is only one part of the picture, though. It still helps to confirm the actual wheel on the car, especially on models that could use either size or cars that may have had wheel changes, because width and overall setup affect which available tire options make the most sense.
Do all 1985 Pontiac Grand Prix sub-models use the same tire size?
No. The 1985 Pontiac Grand Prix Brougham and Brougham w/aluminum wheels use 205/70R14, while the Base, LE, LE w/aluminum wheels, and Grand Prix w/aluminum wheels can use either 195/75R14 or 205/70R14. All of those primary fitments remain radial tires on 14-inch rims.
That variation matters because two cars with the same year and model name may not need the same replacement tire. Identifying the exact sub-model helps narrow the fitment, and on the versions that can use either size, checking the current wheel and tire setup is the best way to avoid ordering by appearance alone.
Choosing the Right Tire
What should I consider when choosing a 1985 Pontiac Grand Prix tire?
Start with the correct primary size for the car: 195/75R14 or 205/70R14, both on 14-inch rims. After size is confirmed, the next considerations are sidewall style, brand, tire series, and wheel compatibility, since the available selections range from traditional whitewalls to blackwall, redline, dual redline, and raised white letter radials.
The right choice depends on how the Grand Prix is used and how it is presented. A more restoration-oriented coupe may call for a whitewall or redline look, while a sportier build may lean toward raised white letters or blackwall styling, as long as the tire matches the wheel and intended fitment.
What sidewall styles are available for 1985 Pontiac Grand Prix tires?
Sidewall choices for the 1985 Pontiac Grand Prix include wide whitewall, narrow whitewall, redline, dual redline, raised white letter, and blackwall, depending on the tire size selected. The broadest visual variety appears in 205/70R14, while 195/75R14 is centered more heavily on whitewall radial options.
That variety lets the tire shape the car’s overall presentation without changing the basic fitment. A whitewall usually supports a more formal personal-luxury look, while redline, dual redline, or raised white letter styling can push the car in a more performance-themed direction, provided the chosen sidewall is offered in the correct size.
What brands offer tires for the 1985 Pontiac Grand Prix?
Available brands for the 1985 Pontiac Grand Prix include Coker Classic, Tornel, Maxxis, Travelstar, BFGoodrich, and Michelin, depending on tire size. Some brands focus on whitewall presentation, while others expand the choices to redline, dual redline, raised white letter, or blackwall styles in the 14-inch radial fitments.
Brand comparison should begin only after the proper size is settled. Once that is established, it makes sense to compare each tire series by appearance, rim-width specification where stated, and other product characteristics such as load information or general presentation, rather than assuming every brand offers the same style within each size.
Restoration & Appearance
Which tire should I choose for a period-style 1985 Pontiac Grand Prix?
A period-style 1985 Pontiac Grand Prix tire starts with the correct radial size for the car, then moves to the visual character you want. In 195/75R14, the choices are centered on whitewall radials, while 205/70R14 opens the door to whitewall, redline, dual redline, raised white letter, and blackwall options.
That means appearance is closely tied to the car’s trim level, wheels, and restoration direction. Buyers aiming for a formal personal-luxury presentation often look toward whitewalls, while others may want a more assertive 1980s performance look, so it helps to compare the tire to the wheel design and the car’s broader restoration theme.
Does correct tire fitment matter for a 1985 Pontiac Grand Prix restoration?
Yes, correct tire fitment matters because the 1985 Pontiac Grand Prix did not rely on one universal size across every covered sub-model. Using the proper 195/75R14 or 205/70R14 fitment affects how the car sits visually and determines which sidewall treatments are even available for the project.
Fitment also shapes the finished look in subtle ways, especially on a car where wheel style and trim level influence the overall presentation. Before finalizing the restoration, confirm the exact sub-model, inspect the wheels actually installed, and compare the tire’s visual style to the look you want rather than choosing by sidewall alone.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1985 Pontiac Grand Prix?
Yes. Even though the 1985 Pontiac Grand Prix uses 14-inch radial sizes, wheel changes, altered suspension height, or body modifications can affect which tire works cleanly on the car. That is especially important on Base and LE-related versions that may use either 195/75R14 or 205/70R14 depending on the setup.
A Grand Prix with aftermarket wheels should be checked for actual rim width, wheel diameter, and clearance at the fender and steering components before replacing tires. The closer the car stays to its original wheel and suspension layout, the easier it is to select among the available styles without creating a fitment surprise.
What should I inspect before driving a 1985 Pontiac Grand Prix on new tires?
Before driving a 1985 Pontiac Grand Prix on new tires, inspect the wheels for damage, confirm the wheel size matches the tire, and make sure each tire is inflated properly for its application. It also helps to check for suspension wear, alignment issues, and any signs that the previous tires rubbed or wore unevenly.
A collector-era coupe can hide problems when it has been parked for long periods, so road-readiness goes beyond the tires alone. Look over brake components, wheel hardware, steering response, and air retention after installation, then take the car on a short controlled drive before putting it back into regular use.
How should 1985 Pontiac Grand Prix tires be maintained?
Tires on a 1985 Pontiac Grand Prix should be maintained with regular pressure checks, visual inspections, and attention to age as well as tread depth. Radial tires on low-use collector cars can look acceptable at a glance while still developing cracking, flat-spotting, air loss, or other age-related issues that affect safe road use.
Storage conditions matter almost as much as mileage on a car from this era. Keeping the Grand Prix away from prolonged sunlight, excess heat, moisture, and ozone sources helps preserve the tires, and periodic inspection of sidewalls, tread, and overall shape makes it easier to catch problems before the next weekend drive.
