If wet braking matters most
Graded A for wet grip, and nothing else that fits is graded higher. Graded C for rolling resistance. EPREL registration 2744391.

The Genesis GV60 leaves the factory on 235/55 R19 and 255/40 R21 and 255/45 R20 depending on wheel size, and the 235/55 R19 105W XL below is the one most owners are replacing. XL is not optional here; it is what the car was type approved on. The Audi Q4 e-tron takes the same size.
| Generation | Trim | Wheel | Tyre size | Load index | Speed | Construction | Marking | Pressure |
|---|---|---|---|---|---|---|---|---|
| Current | 19in | 19in | 235/55 R19 | 105 | W | XL | none | see plate |
| Current | 20in | 20in | 255/45 R20 | 105 | W | XL | none | see plate |
| Current | 21in Sport Plus | 21in | 255/40 R21 | 102 | Y | 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 tyre.
The GV60 is specified differently on each side of the Atlantic. On the 19 inch wheel, European cars wear an XL Michelin Primacy 4 at 105W while US cars are listed on a standard-load 101H, a gap of 100 kg per corner, so a US-spec tyre should not go on a UK car.
The 20 and 21 inch sizes match in load index between markets but not in speed rating: the UK sheets show W and Y where the US listings show V and W.
It shares the E-GMP platform with the Ioniq 5 and EV6. The 21 inch Pilot Sport EV has a sidewall of about 102 mm, the lowest on the car.
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 C for rolling resistance. EPREL registration 2744391.
Graded B 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 2422476.
Measured at 72 decibels. Graded A for wet grip, and nothing else that fits is graded higher. EPREL registration 2548644.
A winter tyre, 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, the best of anything here, and that is the figure that shows on the range display. EPREL registration 727673.
Rated below the speed this vehicle left the factory at, which is permitted for a winter tyre and is why it carries a T or an R. The load index and the construction class still match. Do not exceed the tyre's own rating while it is fitted.
Ordering is by the registered label figure, not by anything we think of them.
Graded A for fuel efficiency in several of the sizes heavy electric cars use, which is a harder result on a two tonne car than it looks.
A studless winter tyre built for the weight and the rolling resistance demands of an electric car.
Rated below the speed this vehicle left the factory at, which is permitted for a winter tyre and is why it carries a T or an R. The load index and the construction class still match. Do not exceed the tyre's own rating while it is fitted.
A Korean-built summer tyre that turns up as original equipment more often than its profile suggests, graded A for fuel efficiency.
A high performance summer tyre available in the Y rated sizes that heavy, fast electric cars are specified with.
A performance summer tyre built for heavy, fast electric cars, with an acoustic foam liner bonded inside the cavity.
Including the manufacturer's own published figure. Neither source is standing next to your vehicle, which is why the placard still wins.