If your insurer found out you have not told the truth,

you insurance policy is invalid, you could be procecuted for driving withou insurance.

Criminal record is a big thing in this country. You have to tell your employers you offence, and every time you get insurance, credit card, mortgage, it has to be mentioned and declared. When you apply for nationality, you could be rejected for this.

Stop lying, it's not worth it. Spend a couple of hundreds more to have a peace of mind.