What are the average insurance rates for a BMW 530 or 5 series in general? I can understand that it may vary based on location and the driving history of the driver and maybe other factors too but still there has got to be an average?

Also, how does the insurance rate compare to a Lexus RX series? Is it more or less than the 5 series?
OK - here are the additional details:

How old are you?
Answer: 32
Have you ever crashed on-fault?
Answer: No
How many speeding tickets have you had?
Answer: None (in 2 yrs of driving history)
What year is the vehicle?
Answer: BMW - 2007, Lexus - 2008
What type of insurance? (full cover, lease/loan, etc)
Answer: Full coverage but the car would be on loan
Which state do you live in?
Answer: WA
Which insurance company are you thinking of?
Answer: Open about it but I am currently with Liberty Northwest

I sort of need to make a decision today about a car that I have looked at and given that the offices are closed on Labor day, I am not able to get thru to my insurance guys.