Show me evidence about using this wheel size on this exact vehicle year. Documented Modified1 builds are observed use — not universal fit confirmation, not a safe offset range, and not a no-rub guarantee.
Evidence summary
Documented builds: 16
Observed range in our build database: ET18 to ET34
Most frequently documented tire: 245/40R18 (6 builds)
Axle context: In our build database: 1 documented as square (same size all around); 15 as part of a staggered setup; 15 front-only for this size; 1 with this size on both axles. Rear-only or front-only counts are not treated as square.
Compared with OEM
OEM baseline used for geometry: 18×8 ET38
Width vs OEM: +1 in
Outer edge 20.7 mm farther toward fender (more outward poke)
Inner edge 4.7 mm closer to suspension (less inner clearance)
Geometry uses the most frequently documented offset when available. It does not mean the wheel “fits” or “will clear.”
Counts include only builds where offset is actually recorded. Missing offsets are not treated as ET0. Linked offsets meet the size+offset evidence threshold.
Tire sizes used with 18×9
245/40R18 — 6 builds
255/35R18 — 4 builds
235/40R18 — 2 builds
245/45R18 — 1 build
Most frequently documented is not a tire recommendation.
Suspension, rubbing, and fender context
Suspension recorded on these builds
Not recorded — 16
Reported rubbing
0 report no rubbing
0 report rubbing
16 do not record rubbing
Fender modifications
Rolled: 0
Pulled: 0
No trimming recorded: 0
Other trimming label: 0
Not recorded: 16
Unknown remains unknown. These counts are descriptive evidence only — not probabilities or clearance guarantees.