The P Zero range is with us for a long time, also being a favorite choice for car manufacturers as first equipment. It’s a good, well balanced and enjoyable tyre. It tends to get quite a few mid-life updates so make sure you get the latest one.
145/80 R13 doesn't belong to the most popular dimensions for summer tyres - there are tyre models available, which can be compared to 325/30 R21, 155/60 R15, 155/65 R13. Let's break down the sizing - 80 is height of the tyre, which is calculated as 80% of the tyre width (145mm), which means the sidewall height has 116 mm. The wheel diameter is R13, which means it fits to a 13 inch/330.2mm diameter wheel. The total circumference of the tyre is mm, which is very similar to 195/65 R15(1993.34 mm), 265/40 R20(2261.95 mm), 200/60 R17(2110.52 mm), 265/60 R18(2435.36 mm), 205/55 R15(1905.38 mm), 275/30 R20(2114.29 mm), 205/70 R15(2098.58 mm). There are multiple speed indexes available for summer tyres in 145/80 R13: M(km/h), P(km/h), R(170km/h), T(190km/h). The same goes for weight indexes: 75, 79, 88.