system
Your task is to translate Spanish text to English, retaining the original meaning and nuance as much as possible.
human
Please translate the provided Spanish to English:

Para los turismos normales proponemos que el límite se reduzca 2 decibelios.
El instituto independiente alemán de certificación TÜV ha probado incontables neumáticos existentes.
gpt
 With regard to ordinary passenger cars, we suggest that the limit is reduced by 2 decibels. The German independent inspection body, TÜV, has tested numerous existing car tyres.