2026 Mercedes-Benz AMG GT — 43 4-Door Coupe
The 2026 Mercedes-Benz AMG GT 43 4-Door Coupe shipped with 3 different factory tire sizes, depending on the wheel package it left the factory with (this can also reflect a staggered front/rear setup). Check your tire sidewall or door placard to confirm which one applies to your vehicle.
This trim shipped with more than one tire size (staggered fitment, front/rear, or optional wheel package). Confirm which one matches your vehicle by checking your tire sidewall or door placard.
255/45R19 (front)285/40R19 (rear)
- Check 255/45R19 (front)285/40R19 (rear) price at TireRack
- Check 255/45R19 (front)285/40R19 (rear) price at SimpleTire
- Check 255/45R19 (front)285/40R19 (rear) price at Priority Tire
Some links on this page are affiliate links — see our disclosure.
265/40R20 (front)295/35R20 (rear)
- Check 265/40R20 (front)295/35R20 (rear) price at TireRack
- Check 265/40R20 (front)295/35R20 (rear) price at SimpleTire
- Check 265/40R20 (front)295/35R20 (rear) price at Priority Tire
Some links on this page are affiliate links — see our disclosure.
275/35R21 (front)315/30R21 (rear)
- Check 275/35R21 (front)315/30R21 (rear) price at TireRack
- Check 275/35R21 (front)315/30R21 (rear) price at SimpleTire
- Check 275/35R21 (front)315/30R21 (rear) price at Priority Tire
Some links on this page are affiliate links — see our disclosure.
Other 2026 Mercedes-Benz AMG GT trims
- 43 Coupe 255/45R19 (front)285/40R19 (rear) / 265/40R20 (front)295/35R20 (rear) / 275/35R21 (front)305/30R21 (rear)
- 53 4-Door Coupe 255/45R19 (front)285/40R19 (rear) / 265/40R20 (front)295/35R20 (rear) / 275/35R21 (front)315/30R21 (rear)
- 55 Coupe 295/35R20 (front)305/35R20 (rear) / 295/30R21 (front)305/30R21 (rear)
- 63 4-Door Coupe 255/45R19 (front)285/40R19 (rear) / 265/40R20 (front)295/35R20 (rear) / 275/35R21 (front)315/30R21 (rear)
- 63 Coupe 295/35R20 (front)305/35R20 (rear) / 295/30R21 (front)305/30R21 (rear)
- 63 Pro 4MATIC Coupe 295/30R21 front / 305/30R21 rear
- 63 S 4-Door Coupe 265/40R20 (front)295/35R20 (rear) / 275/35R21 (front)315/30R21 (rear)
- 63 S E Performance Coupe 295/35R20 (front)305/35R20 (rear) / 295/30R21 (front)305/30R21 (rear)
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.