Hello to the forum, for years it is known that larger rims have an influence on the driving performance. But how high is this really? This interested me so that I have started a small comparison.VideolinkI. General conditions 1. Measuring device was measured my attempt with a Racelogic Performance Box, a GPS-based measuring system that is thus also used by magazines & co. 2. Vehicle & Co hazards was measured with a Mercedes E500 W212, a V8 BiTurbo with 408hp and 600Nm. Of course, loading, distance, temperatures, settings, fuel etc. were kept as identical as possible and measured with both wheel sizes within one hour. II. Result 1. Measurement values The mass of the wheels was first recorded on a household car.The 18″ sports pack wheels of the E-Class W212 are comparatively light with 21.6kg! Significantly heavier the 19″ wheels of the SL R231 with up to 26kg. On the clock immediately 7% worse acceleration values -and the whole The faster you drive, the clearer the difference becomes. 2. Subjective Also from the feeling the car with 18″ is much more splashy. It speaks much faster and even the switching processes work even more fluffy! It is thought that the box weighs easily 100kg less.