Ahmed, read the description, it's an airport car and the 3rd light (red) was required.

This looks like a traffic patrol car from the 1980's. Never saw a lightbar combination like that, nor did I know that the CPD bought from Chevy in 1986. I don't even remember these cars when I was little.

hi greg, i'm sure you remember me from earlier on this year, i bombarded you with some of the most innane questions about police work from the early 80's and you came through with an amazing amount of information for me to use in my book. the book is finished now and although i haven't had any acceptances for it yet it is really down to your help that i have even got it to the stage where it could be sent off to publishers, so again i thank you for all your help. i am thinking of maybe trying to get it published in the U.S since maybe it is more to your type of taste. anyway thanks again and watch this space. stuart.

Good point. I guess I never thought about that. In that case I can understand this lighting combination.

Seems like it would have been easier just to remove one of the blue lenes and place the red one over it.
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Think about it. Being able to have a separate circuited red light means they can use only that light if they are on the runways. They can leave the blues totally off and only use them on the street, where people recognize what the blue means.

Dave