2018 Cadillac ATS tire sizes
The 2018 Cadillac ATS came from the factory with 3 tire sizes on 17" to 18" wheels. The most common size is 225/40 R18. Pick your trim below.
2018 ATS Coupe 2.0L Turbo Luxury
Factory (OE) sizes
18"wheels
Optional sizes
18"wheels
2018 ATS Coupe 2.0L Turbo Standard
Factory (OE) sizes
18"wheels
Optional sizes
18"wheels
2018 ATS Sedan 2.0L Turbo Luxury
Factory (OE) sizes
17"wheels
Optional sizes
18"wheels
2018 ATS Sedan 2.0L Turbo Standard
Factory (OE) sizes
17"wheels
2018 ATS V
Factory (OE) sizes
18"wheels
Optional sizes
18"wheels
How to read 225/40 R18
- 225
- Tread width in millimetres
- 40
- Sidewall height, % of width
- R
- Radial construction
- 18
- Wheel diameter in inches
Overall diameter: about 25.1" · Sidewall: 90 mm