Japanese Police Series

[Praizewood]

Hey boys and gals. I really hope you can help me out here because I've been searching for a long time without any luck. I'm trying to find a japanese series that is from the 90's and it's about a young kid who knows a policeman with a nice car (might be the black and white skyline?). Anyways they fight off the bad guys and it's a really simple series nothing genius, it's just carved into my brain as a 5 year old so it must have been really good. Hope you know which series im talking about, thanks.