205/65 R16 doesn't belong to the most popular dimensions for allround tyres - there are 11 tyre models available, which can be compared to 170/80 R15, 165/70 R13, 325/30 R21. Let's break down the sizing - 65 is height of the tyre, which is calculated as 65% of the tyre width (205mm), which means the sidewall height has 133.25 mm. The wheel diameter is R16, which means it fits to a 16 inch/406.4mm diameter wheel. The total circumference of the tyre is 2113.98 mm, which is very similar to 275/30 R20(2114.29 mm), 235/35 R20(2112.72 mm), 215/50 R18(2111.78 mm), 200/60 R17(2110.52 mm), 275/35 R19(2120.89 mm), 235/40 R19(2106.75 mm), 325/25 R20(2106.44 mm). There are multiple speed indexes available for allround tyres in 205/65 R16: H(210km/h), T(190km/h). The same goes for weight indexes: 95, 107. You can find 205/65 R16 on 17 car models - mainly Mercedes-Benz, Nissan, Opel, Audi, Fiat.