E30

[SimonRiley]

Hi gyes i have a bmw e30 323 and my 3rd gear top speed was 150 km/h after 10 days i was vacation i start the car i take it normal ride and then the next day when i was on 3rd gear my top speed was 120 km/h i say no way so i did it again after 1 hour and it was the same thing....so iam asking if anyone knows the problem please