CONTINENTAL friction tyres 305/40 R20

N0 N0/N1/N2 (Porsche) N0/N1/N2 — Porsche homologation (number indicates iteration). Read more → FR FR (Fringe Rim) FR — rubber ridge on sidewall protects the rim edge from curbs. D Fuel efficiency (A–E) Rolling resistance class A (best) to E. Difference between classes — up to 9% in fuel consumption. C Wet grip (A–E) Wet braking distance. Class A — shortest, E — longest. The difference can reach 30%. B|75dB Noise level (dB) External rolling noise in decibels. Lower number means quieter tire. 3PMSF (Snow grip) 3PMSF — certified winter marking. Tire passed EU tests in deep snow. Read more → M+S M+S (Mud & Snow) M+S (Mud & Snow) — for light snow and mud. Not certified; weaker than 3PMSF. Read more →