The Audi Q4 e-tron leaves the factory on 235/45 R21 and 235/50 R20 and 235/55 R19 depending on wheel size, and the 235/55 R19 101T below is the one most owners are replacing. A standard load 101 rating is modest for an electric car and says something about where this one's curb weight sits. It is staggered: a 235 section at the front and a 255 at the back, so the two can never be swapped across axles and the rear goes first. The Ford Mustang Mach-E takes the same size.
| Generation | Trim | Wheel | Tire size | Load index | Speed | Construction | Marking | Pressure |
|---|---|---|---|---|---|---|---|---|
| Current | UK-market car (19in) | 19in | 235/55 R19 front, 255/50 R19 rear | 101 | T | SL | none | see plate |
| Current | UK-market car (20in) | 20in | 235/50 R20 front, 255/45 R20 rear | 100 | T | SL | none | see plate |
| Current | UK-market car (21in) | 21in | 235/45 R21 front, 255/40 R21 rear | 101 | T | XL | none | see plate |
| Current | UK-market 45 e-tron, 286 PS (21in, V-rated listing) | 21in | 235/45 R21 front, 255/40 R21 rear | 101 | V | XL | none | see plate |
| Current | US-market car (19in) | 19in | 235/55 R19 front, 255/50 R19 rear | 105 | T | XL | none | see plate |
| Current | US-market car (20in) | 20in | 235/50 R20 front, 255/45 R20 rear | 104 | T | XL | none | see plate |
| Current | US-market Sport or Black Optic package (21in) | 21in | 235/45 R21 front, 255/40 R21 rear | 101 | H | XL | none | see plate |
Your own placard is the authority. You will find it on the on the driver's door jamb, on the B-pillar. Where it disagrees with this page, it wins. Match or exceed the size, load index, speed rating and construction class it gives, and use its pressure figure rather than anything printed on the tire.
Every Q4, SUV or Sportback, is staggered: the rear tire is 20 mm wider than the front on all three wheel sizes, so swapping tires front to rear is not possible.
UK and US cars are listed on different load indices for the same 19in and 20in sizes. Michelin's UK data gives standard-load 101 and 103 on the 19in, while its US data gives XL 105 and 107, which is 100 kg more per tire. On a car brought in from the other market, read the sidewall rather than trusting the size alone.
The 21in set is the only one both markets list as XL, and its speed rating differs by market: T on UK cars, H on US cars with the Sport or Black Optic package. At 235/45 the front sidewall is about 106 mm, against 129 mm on the 19in.
It shares the Volkswagen Group MEB platform with the ID.4 and Skoda Enyaq, and the UK 19in and 20in fitments match the Enyaq's. Michelin's US data lists no 19in option for the Sportback.
How these were chosen. Everything here already clears this vehicle's own load index, speed rating and construction class. Each heading is a question about use rather than a ranking. The whole method.
Graded A for wet grip, and nothing else that fits is graded higher. Graded A for rolling resistance, the best of anything here, and that is the figure that shows on the range display. EPREL registration 2626877.
Graded A for rolling resistance, the best of anything here, and that is the figure that shows on the range display. Graded A for wet grip, and nothing else that fits is graded higher. EPREL registration 2619342.
Measured at 70 decibels. Graded A for wet grip, and nothing else that fits is graded higher. EPREL registration 2644146.
A winter tire, so a second set rather than a replacement for what is on the car now. Graded D for wet grip. Graded B for rolling resistance. EPREL registration 727673.
Graded A for wet grip, and nothing else that fits is graded higher. Graded A for rolling resistance, the best of anything here, and that is the figure that shows on the range display. EPREL registration 1367619.
Ordering is by the registered label figure, not by anything we think of them.
Designed for electric cars from the ground up rather than adapted from a combustion tire, and the winner of the 2025 Auto Bild EV tire test.
An all-season tire for electric cars, which is a sensible default in a climate that rarely makes a full winter tire worth the second set of wheels.
Continental's efficiency summer tire in the sizes heavy electric cars actually use, available in some fitments with the ContiSilent foam liner.
Graded A for fuel efficiency in several of the sizes heavy electric cars use, which is a harder result on a two ton car than it looks.
A studless winter tire built for the weight and the rolling resistance demands of an electric car.
An efficiency-first summer tire aimed squarely at range rather than at cornering.
Sumitomo's electric-car range at a price well below the flagships, with the load ratings heavy battery cars actually need.
A Korean-built summer tire that turns up as original equipment more often than its profile suggests, graded A for fuel efficiency.
A high performance summer tire available in the Y rated sizes that heavy, fast electric cars are specified with.
Graded A for wet grip in the large sizes electric SUVs run, which is the grade worth paying for.
A touring summer tire built with Bridgestone's Enliten construction, which cuts weight and rolling resistance across the range rather than in one model.
A performance summer tire built for heavy, fast electric cars, with an acoustic foam liner bonded inside the cavity.
Every figure here comes from one tire maker's own fitment data, checked across different years or trims. That is a second look rather than a second opinion, so check the label on your door jamb before you buy.
