actually all insurance company are governed by Bank Negara Malaysia (BNM)
even free gifts are prohibited by BNM since July last year except for leftovers (heheh)
giving discounts also discouraged by ethical means but because of the stiff competition, some agent still give discounts
BNM does this to ensure the agents are professional enuff to do the job. not just selling but educating people towards insurance.

to ensure that u have the right sum insure, u can look around in newspapers for estimated market value of your car to ensure u are not over insured. this is because insurance company will pay claims according to market value or sum insured (whichever is lower)

for car market value u can try this site

http://www.ambank.com.my/personal/financia...refinancing.asp

then use this site to calculate the premium to be paid

http://www.autoworld.com.my/partner/hla/ca...rs/pcmi_cal.asp

* note that for cases such as old cars or under age limit drivers loading might be included