Hi, thanks for enquiry.

Yes, actually you could use NGK Laser Iridium Spark Plug for Wish 1.8 2006, you may refer the price as below:

1) NGK G-Power Platinum Spark Plug - RM66/set
2) NGK iridium IX Spark Plug - RM194/set
3) NGK Laser iridium Spark Plug - RM236/set

Postage:
West Malaysia - RM7
East Malaysia - RM11

and here's the difference:


If you seek for economic then I will advise you go for G-Power, however for performance wise Laser Iridium will be great deal as it had longest usage life (100,000KM). You will feel the power is much different for Laser iridium & G-Power, and also with the better power, your car doesn't require that much fuel to accelerate till certain speed, there will help you to reduce fuel consumption, but tis doesn't apply to those had heavy foot (which accelerate hard to chase for top speed). Other than that the longer spark plug changing interval could help you to reduce labor cost at workshop too.

For your information, myself also just using G-Power Platinum, as I'm just normal driving driver, so high acceleration for me is not that important, so I go for G-Power.

Hope this could help you to choose a suitable spark plug for your car.