Cadillac ELR Tires

Cadillac ELR uses 245/40R20 for the 2014, 2015, and 2016 model years. That means the full model run shown here stays with one metric radial size on a 20-inch wheel, rather than changing diameters or using multiple year-specific fitments. Available products for Cadillac ELR are all built around that same 20-inch requirement.

That consistency makes the first fitment check straightforward: verify that your Cadillac ELR still has its proper 20-inch wheels and that the replacement tire matches 245/40R20 rather than a visually similar alternate size. If the car has been modified, compare the wheel width and overall tire dimensions carefully before changing from the listed factory-type format.

The 245/40R20 code on a Cadillac ELR is a modern metric radial size. The 245 is the tire’s nominal section width in millimeters, 40 is the aspect ratio that relates sidewall height to section width, R identifies radial construction, and 20 is the wheel diameter in inches. It is a low-profile performance-oriented fitment rather than a tall-sidewall touring size.

For a Cadillac ELR owner, that code matters because every part of it affects how the tire fits and drives. Changing width, aspect ratio, or rim diameter can alter clearance, speedometer behavior, and the car’s steering response, so the safest course is to stay with the listed size unless a knowledgeable specialist has already engineered a different wheel-and-tire package.

Cadillac ELR uses a 20-inch rim diameter across the 2014 to 2016 production years shown here. Every available tire product for Cadillac ELR in this fitment is built around that same 20-inch wheel size, with some product listings also noting compatible rim widths in the 8.0 to 9.5 inch range.

Rim diameter is the first number to confirm on the actual wheel before replacing tires on a Cadillac ELR. A tire with the correct width but the wrong diameter will not mount properly, and a wheel-width mismatch can affect sidewall shape and handling, so compare both the wheel diameter and the tire maker’s approved wheel-width range before final selection.

A 2014 Cadillac ELR uses 245/40R20, the same size carried through the full 2014 to 2016 run. Since there is only one listed size, the fitment question is less about year-by-year variation and more about making sure the car still retains the correct 20-inch wheel package and has not been altered with a nonstandard tire size.

Start by reading the size on the tire currently fitted to your 2014 Cadillac ELR and checking the wheel diameter directly. If the car is newly acquired, compare what is on the car against the door-jamb tire information label and the wheel width, because modern collectible cars are often changed cosmetically and can wear replacement sizes that look close but do not preserve the original proportions.

Cadillac ELR tires are available here in blackwall, RWL, and redline sidewall styles. Blackwall is represented across multiple radial tire lines, while the Pro-Trac Street Pro III appears in both raised white letter and redline versions in the listed 245/40R20 size. All of these options remain 20-inch radial fitments for Cadillac ELR.

For an original-looking Cadillac ELR, blackwall is the most restrained and contemporary visual choice. RWL and redline options give the car a more customized or enthusiast-oriented appearance, so the decision comes down to whether you want a stock-minded presentation or a more personalized look while still keeping the correct base size and radial construction.

The Cadillac ELR tire options listed here come from BFGoodrich, Nitto, and Pro-Trac. BFGoodrich appears with g-Force Comp 2 AS and g-Force Phenom T/A products, Nitto is represented by the NT555 G2, and Pro-Trac appears with Street Pro III variants. All are radial tires in the 245/40R20 fitment.

Brand choice on a Cadillac ELR usually comes down to the balance you want between appearance and driving character. Some owners will prioritize a clean blackwall performance-touring look, while others may want the distinctive visual statement of RWL or redline styling, so compare the sidewall presentation as carefully as the brand name when narrowing the final choice.

Cadillac ELR is offered here in several distinct radial tire series: BFGoodrich g-Force Comp 2 AS, BFGoodrich g-Force Phenom T/A, Nitto NT555 G2, and Pro-Trac Street Pro III. The listed series differ primarily by manufacturer line and sidewall presentation, with the Pro-Trac Street Pro III appearing in both RWL and redline forms while the other options are blackwall radials.

That means a Cadillac ELR owner can approach the decision from two angles. If the goal is a modern, understated appearance, one of the blackwall series will usually fit the car’s original visual character more closely; if the car leans toward show presentation or personalized styling, the Pro-Trac alternatives add a period-performance look without changing away from the correct 245/40R20 radial format.

Cadillac ELR should be stored on a clean, dry surface away from direct sunlight, ozone sources, and major temperature swings. Keep the tires inflated to an appropriate storage pressure, move the car occasionally if possible, and avoid letting one section of the tread carry the load in the same spot for very long periods. Low-profile radial tires can develop temporary flat spotting when left stationary.

For a collectible Cadillac ELR that is driven only seasonally, storage habits matter as much as mileage. A battery tender, a stable indoor environment, and periodic rolling of the car help preserve both the tire structure and the driving feel when the car returns to the road, especially with 20-inch fitments that have shorter, stiffer sidewalls than older touring tires.

Tires on a Cadillac ELR should be inspected several times during the driving season and always before any longer trip. Look for sidewall cracking, impact damage, punctures, irregular shoulder wear, and signs of aging or underinflation. On a low-mileage modern collectible, deterioration can develop from time and storage even when tread depth still looks strong.

A practical routine is to inspect the tires every month the Cadillac ELR is in use and again after the car has been parked for extended periods. Because the ELR uses a low-profile 245/40R20 size, small inflation or alignment issues can show up quickly in ride quality and edge wear, so early checks are much better than waiting for the next service interval.

Cadillac ELR tires should be replaced when age, cracking, hardening, bulges, repeated air loss, or impact damage appear, even if the tread still seems usable. Tread depth alone is not the full measure of serviceability on a collector car, because a lightly driven tire can age out before it wears out. Any sign of structural distress outweighs remaining tread.

That is especially important for a Cadillac ELR because its performance-oriented 20-inch tires influence braking, steering precision, and ride quality. If the car has sat for long periods, have the tires evaluated during routine service and pay attention to the manufacturing date on the sidewall, since older low-use tires can look presentable while no longer delivering the response expected from the chassis.

The listed Cadillac ELR tires are modern radial road tires in the correct 245/40R20 format, so they are intended for normal public-road use when they are properly mounted, inflated, and matched to sound wheels. Safety still depends on the condition of the individual tire, the age of the tire, and the mechanical state of the car rather than the size code alone.

Before regular road use, make sure the Cadillac ELR has even tread wear, no visible damage, correct pressure, and a current alignment if the steering feels unsettled. Because the ELR is a heavy, sophisticated coupe with instant electric torque, tire condition plays a direct role in braking response, cornering stability, and the quiet, composed ride the car was designed to deliver.

Before driving a Cadillac ELR, check inflation pressure, visible tread and sidewall condition, wheel damage, and any signs of air loss or uneven wear. Also confirm that all four tires match the intended 245/40R20 size and that there is no rubbing, especially if the car has aftermarket wheels or has been sitting unused for long periods. A brief visual inspection catches many problems early.

On a Cadillac ELR, that pre-drive routine is worthwhile because the car’s low-profile radial tires react noticeably to pressure loss and alignment changes. If the steering feels different, the ride becomes harsh, or road noise increases suddenly, stop and inspect the tires before continuing, as those changes often point to damage, aging, or a developing fitment problem.

A Cadillac ELR should be driven within the tire’s marked service limits and in a manner appropriate to road conditions, traffic, and the condition of the car itself. Several listed options carry modern performance-oriented speed ratings, but the practical road speed for any individual Cadillac ELR still depends on tire age, inflation, alignment, wheel condition, and overall maintenance.

For a collectible Cadillac ELR, the wiser approach is to treat high-speed capability as a reserve rather than a target. Even with the correct 245/40R20 radial size, an older tire or a car that has spent long periods parked deserves a gradual return to service, with careful attention to vibration, pull, heat buildup, and any change in handling as speed increases.