Tyres.co.uk allows for comparisons for Michelin Latitude Sport 3 and Pirelli P Zero, in sizes 255/45 R20 105Y and 285/40 R20 108Y, respectively, for the X253's option of the staggered 20-inch wheels. Please check the fuel-filler-flap table, registration, load index, speed rating and XL before making the order.
The Mercedes GLC43 AMG's approved combinations of wheels and tyres are listed in the tyre pressure chart in the fuel-filler flap. The tyre and loading placard is located on the driver’s side B-pillar. Since the options of the wheels may vary, check the chart in the fuel-flap, the tyre sidewall and registration before making the order.
Usually, the Mercedes GLC43 AMG does not need four new tyres, but two new tyres with the existing pair kept on the opposite axle. All GLC43 AMGs are 4MATIC, and Mercedes requires all four tyres to be the same brand and model, hence, if a matching set cannot be maintained, then all four tyres must be replaced. When replacing a pair of tyres, position them on the rear axle.