Huruf terakhir – contoh : H adalah had maksimum kelajuan 210 km / jam (jangan main tekan pedal ikut suka ya!).
Jika ianya huruf terakhir seperti di bawah, ia membawa maksud:
i. S = Maksimum had laju 180 km / jam
ii. T = Maksimum had laju 190 km / jam
iii. U = Maksimum had laju 200 km / jam
iv. V = Maksimum had laju 240 km / jam
v. Z = Melebihi had laju 240 km / jam
vi. W = Maksimum had laju 270 km / jam
vii. Y = Maksimum had laju 300 km / jam
viii. ZR = melebihi 270 km / jam ke atas