Pneumatici auto firestone estive 225/45 R18 V
225/45 R18 95Y XL 
B 
A 
70 dB
B
A
70 dB
225/45 R18 95Y XL
B
A
71 dB
B
A
71 dB
225/45 R18 95V XL
C
D
72 dB
C
D
72 dB
225/45 R18 95Y XL
C
A
71 dB
C
A
71 dB
225/45 R18 95Y XL
D
B
71 dB
D
B
71 dB