Singapore insurance price calculate base on point. Higher the point higher the risk( so do the price)
Category
1. Type of car (saloon/sport/convertible...)
2. Engine capacity -CC
3. Age of the driver
4. Driver experience- year
5. Insure value
6. Claim insurance before(black listed)
Above are the major point calculation and there are also many minor point added in.
If claim 2 or more insurance in a year then good luck- because many insurance will reject such driver.