2019 Mercedes Benz Mercedes-Benz AMG GT — 63 4-Door Coupe
The 2019 Mercedes Benz Mercedes-Benz AMG GT 63 4-Door Coupe came from the factory equipped with 255/45R19 tires. If your vehicle has since been fitted with aftermarket or upsized wheels, your actual tire size may no longer match this factory spec — always confirm against your door placard before buying.
255/45R19
| Section width | 255 mm |
|---|---|
| Aspect ratio (sidewall height) | 45% (114.8 mm) |
| Rim diameter | 19" |
| Overall tire diameter | ~28" |
| Revolutions per mile | ~719 |
- Check 255/45R19 price at TireRack
- Check 255/45R19 price at SimpleTire
- Check 255/45R19 price at Priority Tire
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Other 2019 Mercedes Benz Mercedes-Benz AMG GT trims
- 53 4-Door Coupe 255/45R19 / 285/40R19 / 265/40R20 / 295/35R20 / 275/35R21 / 315/30R21
- 63 S 4-Door Coupe 265/40R20 / 295/35R20 / 275/35R21 / 315/30R21
- C Coupe 265/35R19 / 305/30R20
- C Roadster 265/35R19 / 305/30R20
- Coupe 265/35R19 / 295/30R20
- R Coupe 275/35R19 / 325/30R20
- Roadster 265/35R19 / 295/30R20
- S Coupe 265/35R19 / 295/30R20
How to read a tire size
A tire size like 225/45R17 breaks down into three parts:
the first number is the section width in millimeters
(the tire's width from sidewall to sidewall), the second is the
aspect ratio — the sidewall's height as a percentage of
that width — and the number after the "R" is the rim
diameter in inches. A letter prefix (P or LT) indicates
Passenger or Light Truck construction; its absence usually means
Euro-metric sizing.
Some trucks and off-road tires instead use "flotation" sizing, like
37X12.50R17 — here the numbers are the tire's overall
diameter and width in inches directly, with the rim diameter last.
Always verify against the tire information placard on your driver's-side door jamb or your owner's manual before purchasing — tire size can vary by factory option package even within the same trim.