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 1211481.

The MG MG5 EV leaves the factory on 205/60 R16 and 215/50 R17 depending on wheel size, and the 205/60 R16 96V XL below is the one most owners are replacing. XL is not optional here; it is what the car was type approved on. The MG ZS EV takes the same size.
| Generation | Trim | Wheel | Tyre size | Load index | Speed | Construction | Marking | Pressure |
|---|---|---|---|---|---|---|---|---|
| Current | 16in wheels | 16in | 205/60 R16 | 96 | V | XL | none | see plate |
| Current | 17in wheels | 17in | 215/50 R17 | 91 | V | SL | 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 MG5 is an electric estate, and its two wheel sizes take quite different tyres: 205/60 R16 96V on 16 inch rims and 215/50 R17 91V on 17s. The 16 inch is an XL size rated to 710 kg; the 17 inch is standard load at 615 kg.
MG's manual allows the 17 inch fitment as either 91V or 91W, and the Michelin Primacy 3 ST on MG's label sheet is the W version. A V-rated replacement meets the minimum. At about 107 mm, the 17 inch has the shallower sidewall of the two.
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 1211481.
Graded A for rolling resistance, the best of anything here, and that is the figure that shows on the range display. Graded B for wet grip. EPREL registration 914991.
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 touring summer tyre built with Bridgestone's Enliten construction, which cuts weight and rolling resistance across the range rather than in one model.
Graded A for wet grip in the large sizes electric SUVs run, which is the grade worth paying for.
An efficiency-first summer tyre aimed squarely at range rather than at cornering.
Including the manufacturer's own published figure. Neither source is standing next to your vehicle, which is why the placard still wins.