The Toyota Prius at Tyres.co.uk has tyre options which include Michelin Primacy 5 energy™ and Goodyear EfficientGrip Performance 2 in 205/60 R16 92V for 16-inch wheels. The factory also offers 17-inch wheels, so check the registration, placard load index, and speed rating before buying.
The size of the tyres on the Toyota Prius can be found on the tyre and loading information placard on the centre door pillar of the driver's side (B-pillar), which is visible when the driver's door is open. The label also states the approved cold inflation pressures, which should be compared to those on the sidewall of the tyre before ordering replacements.
Since there is no all-wheel-drive option for the Toyota Prius, no drivetrains require the replacement of all four tyres as a matched set. However, Toyota still requires the same size, brand, tread pattern, and load index for all wheels to be matched. This means that you can either keep the matching set or replace all four tyres. When considering a pair of tyres, it is recommended to install the new tyres on the rear axle.